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Every claim: every version
This section is a projection of the site's data, rebuilt on every release. It is written for Alex, curious reader. A new version is recorded only when the text a reader sees changes, so a release that changed something elsewhere leaves this section's version alone. It has 14 versions; the newest is first, and each is shown as the changes from the one before. Read the current version →
v14 · site v0.22.25 · 26 October 2026 · 1 lines added or changed, 1 removed or changed, against v13 · 01077d4cdccc
# Every claim, with its status and sources
116 unchanged lines
| Latvia restricted access from abroad to several state digital resources, possibly until 26 October; lsm.lv and 112.lv were restored by 20:00 UTCThe one documented case of government services being pulled from the public internet, from the agency itself. | CERT.LV | confirmed | **A6** Established●●●●●● | 1/1 | CERT.LV |
| As of 09:3514:40 UTC on 25 October, no named organisation has said it was compromised through php2shell. Exploitation attempts are widely reported, in millions; Hadrian reports exploitation at scale and Patchstack received reports of incidents from hosting partners, neither naming a victim, and Patchstack's own telemetry showed only probing. Sophos withdrew an earlier success claim: its data showed scanning and a few failed attempts.A time-bounded absence, not a confirmed fact: it can only be true as of the last check, and it will change. Changed from "confirmed" on 22 October at the editor's request. Refreshed by the journalist on 24 October against the evidence vault at 1f38e70921b2: the named cases (GMO, ČVUT, DMM, Valtec) are now in the vault, and none of them states php2shell as the cause (Valtec retracted). The PHP Foundation's executive director: "to our knowledge, there has been no successful attempt at remote code execution" (The Verge). Luxembourg: no institution has announced an intrusion (Paperjam). Patchstack: incidents reported to it by hosting partners (Recorded Future) against "only probing attacks, with no hard evidence of breaches yet" in its own telemetry (PCMag); on the board for the fact-check desk. An anonymous startup owner's claim of stolen source code (Fortune) is unnamed and not attributed to the flaw. Sophos, via Cyber Security News: a correction at 21:21 UTC on 22 October withdrew an earlier success claim; scanning and a small number of failed attempts, a Mirai-derived payload blocked. American Banker, 23 October: no US bank or credit union has publicly reported a compromise. Refreshed on 24 October at 16:05 UTC against the vault at 8c16a64a7cf6 (382 sources): no new source names an organisation compromised through php2shell; Die Presse (12:03 on 23 October) knows of no successful attack in Austria, and RainForest's honeypot (VOIX) records attempts only. Refreshed again on 25 October at 09:35 UTC (10:35(09:35 BST)GMT: the UK clocks went back at 01:00 UTC that day; an earlier version of this note said 10:35 BST, which was wrong) against the vault at 87795d121200 (418 sources): still no new source names an organisation compromised through php2shell; Turkey's Presidency Cybersecurity Directorate says the e-Devlet portal had no problem. Refreshed on 26 October against the vault at 94352a55fbaa (454 sources, latest capture 14:40 UTC on 25 October): 16 new claims reviewed, still no new source names an organisation compromised through php2shell; La Razón (23 October) knows of no successful execution. | this site, from every captured source in the evidence vault (418(454 sources, head 87795d121200),94352a55fbaa), as of its latest capture at 09:3514:40 UTC on 25 October | reported | **A4** Corroborated●●●●○○ | 6/236/24 | CISA CISA Huntress Amazon SecurityWeek SecurityWeek Recorded Future Imperva Threat Research Weird Gloop Paperjam PCMag IT Social Lupa.cz Yahoo! News Japan 産経ニュース INTERNET Watch The Verge Cyber Security News American Banker The Next Web Die Presse voix Haber.com La Razón |
| The Dutch government took NCSC.nl offline as a precaution, with no active misuse seen yet; Dutch press reported DigiD, MijnOverheid and Overheid.nl offline tooThe government's notice names only NCSC.nl; DigiD and MijnOverheid rest on the press (fact-check desk, run 1: holds in part, overstated). | the Dutch government | reported | **A4** Corroborated●●●●○○ | 1/2 | Rijksoverheid / NCSC-NL TPO.nl |
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The newsroom's own twelve claims, seeded from the BBC live page on the morning of 22 October, are in the vault as `claims/claude-newsroom-lead.json` and are superseded by the rows above, which trace each of them to primary sources. The raw rows are in data/claims.json.
v13 · site v0.19.2 · 25 October 2026 · 1 lines added or changed, 1 removed or changed, against v12 · 37a185e4272a
# Every claim, with its status and sources
116 unchanged lines
| Latvia restricted access from abroad to several state digital resources, possibly until 26 October; lsm.lv and 112.lv were restored by 20:00 UTCThe one documented case of government services being pulled from the public internet, from the agency itself. | CERT.LV | confirmed | **A6** Established●●●●●● | 1/1 | CERT.LV |
| As of 16:0509:35 UTC on 2425 October, no named organisation has said it was compromised through php2shell. Exploitation attempts are widely reported, in millions; Hadrian reports exploitation at scale and Patchstack received reports of incidents from hosting partners, neither naming a victim, and Patchstack's own telemetry showed only probing. Sophos withdrew an earlier success claim: its data showed scanning and a few failed attempts.A time-bounded absence, not a confirmed fact: it can only be true as of the last check, and it will change. Changed from "confirmed" on 22 October at the editor's request. Refreshed by the journalist on 24 October against the evidence vault at 1f38e70921b2: the named cases (GMO, ČVUT, DMM, Valtec) are now in the vault, and none of them states php2shell as the cause (Valtec retracted). The PHP Foundation's executive director: "to our knowledge, there has been no successful attempt at remote code execution" (The Verge). Luxembourg: no institution has announced an intrusion (Paperjam). Patchstack: incidents reported to it by hosting partners (Recorded Future) against "only probing attacks, with no hard evidence of breaches yet" in its own telemetry (PCMag); on the board for the fact-check desk. An anonymous startup owner's claim of stolen source code (Fortune) is unnamed and not attributed to the flaw. Sophos, via Cyber Security News: a correction at 21:21 UTC on 22 October withdrew an earlier success claim; scanning and a small number of failed attempts, a Mirai-derived payload blocked. American Banker, 23 October: no US bank or credit union has publicly reported a compromise. Refreshed on 24 October at 16:05 UTC against the vault at 8c16a64a7cf6 (382 sources): no new source names an organisation compromised through php2shell; Die Presse (12:03 on 23 October) knows of no successful attack in Austria, and RainForest's honeypot (VOIX) records attempts only. Refreshed again on 25 October at 09:35 UTC (10:35 BST) against the vault at 87795d121200 (418 sources): still no new source names an organisation compromised through php2shell; Turkey's Presidency Cybersecurity Directorate says the e-Devlet portal had no problem. | this site, from every captured source in the evidence vault (382(418 sources, head 8c16a64a7cf6),87795d121200), as of its latest capture at 16:0509:35 UTC on 2425 October | reported | **A4** Corroborated●●●●○○ | 6/226/23 | CISA CISA Huntress Amazon SecurityWeek SecurityWeek Recorded Future Imperva Threat Research Weird Gloop Paperjam PCMag IT Social Lupa.cz Yahoo! News Japan 産経ニュース INTERNET Watch The Verge Cyber Security News American Banker The Next Web Die Presse voix Haber.com |
| The Dutch government took NCSC.nl offline as a precaution, with no active misuse seen yet; Dutch press reported DigiD, MijnOverheid and Overheid.nl offline tooThe government's notice names only NCSC.nl; DigiD and MijnOverheid rest on the press (fact-check desk, run 1: holds in part, overstated). | the Dutch government | reported | **A4** Corroborated●●●●○○ | 1/2 | Rijksoverheid / NCSC-NL TPO.nl |
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The newsroom's own twelve claims, seeded from the BBC live page on the morning of 22 October, are in the vault as `claims/claude-newsroom-lead.json` and are superseded by the rows above, which trace each of them to primary sources. The raw rows are in data/claims.json.
v12 · site v0.18.2 · 25 October 2026 · 1 lines added or changed, 1 removed or changed, against v11 · c608a9c389f0
# Every claim, with its status and sources
96 unchanged lines
| No exploitation observed on Huntress partner systems as of 20:30 UTC on 21 October; no public exploit code known to Huntress | Huntress | reported | **A2** Reported●●○○○○ disputed | 1/1 | Huntress |
| watchTowr sees active exploitation attempts and lists the flaws as exploited in the wildwatchtowr.com returns HTTP 403 to this site's capture tool; known only from search summaries. | watchTowr | unverified | **A4****A6** Corroborated●●●●○○ supersededEstablished●●●●●● | 2/2 | watchTowr watchTowr |
| The last PHP core RCE, CVE-2024-4577, was exploited in the wild one day after disclosure and in KEV three days after; php2shell is not in KEV after one dayThe KEV dates are counted from the captured catalog; 'exploited in the wild one day after disclosure' rests on Akamai alone. | CISA KEV catalog; Akamai (2024) | reported | **A2** Reported●●○○○○ | 3/3 | CISA CVE record Akamai Security Research |
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The newsroom's own twelve claims, seeded from the BBC live page on the morning of 22 October, are in the vault as `claims/claude-newsroom-lead.json` and are superseded by the rows above, which trace each of them to primary sources. The raw rows are in data/claims.json.
v11 · site v0.15.19 · 24 October 2026 · 1 lines added or changed, 1 removed or changed, against v10 · 4825f4868d5d
# Every claim, with its status and sources
116 unchanged lines
| Latvia restricted access from abroad to several state digital resources, possibly until 26 October; lsm.lv and 112.lv were restored by 20:00 UTCThe one documented case of government services being pulled from the public internet, from the agency itself. | CERT.LV | confirmed | **A6** Established●●●●●● | 1/1 | CERT.LV |
| As of 08:3716:05 UTC on 24 October, no named organisation has said it was compromised through php2shell. Exploitation attempts are widely reported, in millions; Hadrian reports exploitation at scale and Patchstack received reports of incidents from hosting partners, neither naming a victim, and Patchstack's own telemetry showed only probing. Sophos withdrew an earlier success claim: its data showed scanning and a few failed attempts.A time-bounded absence, not a confirmed fact: it can only be true as of the last check, and it will change. Changed from "confirmed" on 22 October at the editor's request. Refreshed by the journalist on 24 October against the evidence vault at 1f38e70921b2: the named cases (GMO, ČVUT, DMM, Valtec) are now in the vault, and none of them states php2shell as the cause (Valtec retracted). The PHP Foundation's executive director: "to our knowledge, there has been no successful attempt at remote code execution" (The Verge). Luxembourg: no institution has announced an intrusion (Paperjam). Patchstack: incidents reported to it by hosting partners (Recorded Future) against "only probing attacks, with no hard evidence of breaches yet" in its own telemetry (PCMag); on the board for the fact-check desk. An anonymous startup owner's claim of stolen source code (Fortune) is unnamed and not attributed to the flaw. Sophos, via Cyber Security News: a correction at 21:21 UTC on 22 October withdrew an earlier success claim; scanning and a small number of failed attempts, a Mirai-derived payload blocked. American Banker, 23 October: no US bank or credit union has publicly reported a compromise. Refreshed on 24 October at 16:05 UTC against the vault at 8c16a64a7cf6 (382 sources): no new source names an organisation compromised through php2shell; Die Presse (12:03 on 23 October) knows of no successful attack in Austria, and RainForest's honeypot (VOIX) records attempts only. | this site, from every captured source in the evidence vault (328(382 sources, head 1f38e70921b2),8c16a64a7cf6), as of its latest capture at 08:3716:05 UTC on 24 October | reported | **A4** Corroborated●●●●○○ | 6/206/22 | CISA CISA Huntress Amazon SecurityWeek SecurityWeek Recorded Future Imperva Threat Research Weird Gloop Paperjam PCMag IT Social Lupa.cz Yahoo! News Japan 産経ニュース INTERNET Watch The Verge Cyber Security News American Banker The Next Web Die Presse voix |
| The Dutch government took NCSC.nl offline as a precaution, with no active misuse seen yet; Dutch press reported DigiD, MijnOverheid and Overheid.nl offline tooThe government's notice names only NCSC.nl; DigiD and MijnOverheid rest on the press (fact-check desk, run 1: holds in part, overstated). | the Dutch government | reported | **A4** Corroborated●●●●○○ | 1/2 | Rijksoverheid / NCSC-NL TPO.nl |
7 unchanged lines
The newsroom's own twelve claims, seeded from the BBC live page on the morning of 22 October, are in the vault as `claims/claude-newsroom-lead.json` and are superseded by the rows above, which trace each of them to primary sources. The raw rows are in data/claims.json.
v10 · site v0.15.3 · 24 October 2026 · 1 lines added or changed, 1 removed or changed, against v9 · be46118f66fa
# Every claim, with its status and sources
88 unchanged lines
| Reports of active exploitation existThe only agency saying so, and it does not say whose reports. | NCSC New Zealand | reported | **A2** Reported●●○○○○ disputed | 1/1 | NCSC New Zealand |
| An exploit attempt hit an Amazon honeypot on 17 October from an anonymisation network; proof-of-concept attempts began about 02:00 UTC on 21 October from multiple actors; after release 'PHP2Shell is now being broadly exploited in the wild'Primary party. Amazon adds: 'it's unclear if any of these attempts would have succeeded in real-world systems'. Attempts against honeypots, not compromises of victims. | Amazon (CJ Moses, AWS Security Blog) | reported | **A2** Reported●●○○○○ disputedsuperseded | 1/2 | Amazon THN |
| Cloudflare observed attack traffic targeting its customers after the leak, with attackers mutating payloadsPrimary party, no volumes. | Cloudflare | reported | **A2** Reported●●○○○○ | 1/1 | Cloudflare |
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The newsroom's own twelve claims, seeded from the BBC live page on the morning of 22 October, are in the vault as `claims/claude-newsroom-lead.json` and are superseded by the rows above, which trace each of them to primary sources. The raw rows are in data/claims.json.
v9 · site v0.14.30 · 24 October 2026 · 1 lines added or changed, 1 removed or changed, against v8 · af292f8a79c6
# Every claim, with its status and sources
116 unchanged lines
| Latvia restricted access from abroad to several state digital resources, possibly until 26 October; lsm.lv and 112.lv were restored by 20:00 UTCThe one documented case of government services being pulled from the public internet, from the agency itself. | CERT.LV | confirmed | **A6** Established●●●●●● | 1/1 | CERT.LV |
| As of 16:0408:37 UTC on 2324 October, no named organisation has said it was compromised through php2shell. Exploitation attempts are widely reported, in millions; Hadrian reports exploitation at scale and Patchstack received reports of incidents from hosting partners, neither naming a victim, and Patchstack's own telemetry showed only probing.Aprobing. Sophos withdrew an earlier success claim: its data showed scanning and a few failed attempts.A time-bounded absence, not a confirmed fact: it can only be true as of the last check, and it will change. Changed from "confirmed" on 22 October at the editor's request. Refreshed by the journalist on 24 October against the evidence vault at 1845598d9a38:1f38e70921b2: the named cases (GMO, ČVUT, DMM, Valtec) are now in the vault, and none of them states php2shell as the cause (Valtec retracted). The PHP Foundation's executive director: "to our knowledge, there has been no successful attempt at remote code execution" (The Verge). Luxembourg: no institution has announced an intrusion (Paperjam). Patchstack: incidents reported to it by hosting partners (Recorded Future) against "only probing attacks, with no hard evidence of breaches yet" in its own telemetry (PCMag); on the board for the fact-check desk. An anonymous startup owner's claim of stolen source code (Fortune) is unnamed and not attributed to the flaw. Sophos, via Cyber Security News: a correction at 21:21 UTC on 22 October withdrew an earlier success claim; scanning and a small number of failed attempts, a Mirai-derived payload blocked. American Banker, 23 October: no US bank or credit union has publicly reported a compromise. | this site, from every captured source in the evidence vault (295(328 sources, head 1845598d9a38),1f38e70921b2), as of its latest capture at 16:0408:37 UTC on 2324 October | reported | **A4** Corroborated●●●●○○ | 6/176/20 | CISA CISA Huntress Amazon SecurityWeek SecurityWeek Recorded Future Imperva Threat Research Weird Gloop Paperjam PCMag IT Social Lupa.cz Yahoo! News Japan 産経ニュース INTERNET Watch The Verge Cyber Security News American Banker The Next Web |
| The Dutch government took NCSC.nl offline as a precaution, with no active misuse seen yet; Dutch press reported DigiD, MijnOverheid and Overheid.nl offline tooThe government's notice names only NCSC.nl; DigiD and MijnOverheid rest on the press (fact-check desk, run 1: holds in part, overstated). | the Dutch government | reported | **A4** Corroborated●●●●○○ | 1/2 | Rijksoverheid / NCSC-NL TPO.nl |
7 unchanged lines
The newsroom's own twelve claims, seeded from the BBC live page on the morning of 22 October, are in the vault as `claims/claude-newsroom-lead.json` and are superseded by the rows above, which trace each of them to primary sources. The raw rows are in data/claims.json.
v8 · site v0.13.0 · 24 October 2026 · 6 lines added or changed, 6 removed or changed, against v7 · 0f19f1eeef8e
# Every claim, with its status and sources
41 unchanged lines
| Something like 30 million websites could be affectedNo basis given. | Alan Woodward, via the BBC | reported | **A2** Reported●●○○○○ | 0/1 | BBC News |
| VulnCheck counts about 2.6 million internet-facing hosts exposing PHP; Censys, of the 2.58 million hosts it saw, could read a version on 1.58 million, and 1.57 million of those were unpatched on 21 OctoberCensys: 2.58 million hosts seen, 1.58 million reporting a version, 1.57 million not patched; nearly 3 million by 22 October. VirusTotal: 5.1 million IPs running PHP, 1.1 million announcing a version. Unit 42: 22.6 million systems that 'could be vulnerable' (via Insurance Business). Censys's own post was not found. | VulnCheck and Censys, via The Hacker News and SecurityWeek | reported | **A2** Reported●●○○○○ measures differently | 0/2 | THN SecurityWeek |
| About 6,000 potentially affected resources in Latvia, a few hundred in the public sectorPrimary source, one country, says 'potentially'. | CERT.LV | reported | **A2** Reported●●○○○○ | 1/1 | CERT.LV |
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|---|---|---|---|---|---|
| On 20 October at about 15:00 UTC the two CVE IDs began circulating on forums and social media with a wrong release time and a wrong CVSS score; no technical details leakedPrimary party. The Foundation does not say who or where. | PHP Foundation | reported | **A2****A4** Reported●●○○○○Corroborated●●●●○○ disputed | 2/2 | PHP Foundation PHP Foundation |
| The leak started with an anonymous Hacker News post citing a reliable source, which came down after screenshots spread; a screenshot of the 'PHP2Shell tool' credited to Calif.io and a short exploitation video also went up and came downContradicts the Foundation's 'no technical details leaked' and The Hacker News's 'a proof-of-concept exploit leaked'. No copy of the post, screenshot or video is in the vault. | Alexandre Daubois (PHP security team, personal blog) | reported | **A2****A4** Reported●●○○○○Corroborated●●●●○○ disputed | 0/1 | Daubois |
| watchTowr confirmed in public that the bugs were real and posted both CVE numbers before the release | Daubois; CERT-EU lists a watchTowr X post among public reports | reported | **A4** Corroborated●●●●○○ | 1/2 | Daubois CERT-EU |
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| watchTowr sees active exploitation attempts and lists the flaws as exploited in the wildwatchtowr.com returns HTTP 403 to this site's capture tool; known only from search summaries. | watchTowr | unverified | **A4** Corroborated●●●●○○ superseded | 2/2 | watchTowr watchTowr |
| The last PHP core RCE, CVE-2024-4577, was exploited in the wild one day after disclosure and in KEV three days after; php2shell is not in KEV after one dayThe KEV dates are counted from the captured catalog; 'exploited in the wild one day after disclosure' rests on Akamai alone. | CISA KEV catalog; Akamai (2024) | reported | **A2** Reported●●○○○○ status overstated | 3/3 | CISA CVE record Akamai Security Research |
16 unchanged lines
| Latvia restricted access from abroad to several state digital resources, possibly until 26 October; lsm.lv and 112.lv were restored by 20:00 UTCThe one documented case of government services being pulled from the public internet, from the agency itself. | CERT.LV | confirmed | **A6** Established●●●●●● | 1/1 | CERT.LV |
| As of 16:04 UTC on 23 October, no named organisation has said it was compromised through php2shell. Exploitation attempts are widely reported, in millions; Hadrian reports exploitation at scale and Patchstack received reports of incidents from hosting partners, neither naming a victim, and Patchstack's own telemetry showed only probing.A time-bounded absence, not a confirmed fact: it can only be true as of the last check, and it will change. Changed from "confirmed" on 22 October at the editor's request. Refreshed by the journalist on 24 October against the evidence vault at 1845598d9a38: the named cases (GMO, ČVUT, DMM, Valtec) are now in the vault, and none of them states php2shell as the cause (Valtec retracted). The PHP Foundation's executive director: "to our knowledge, there has been no successful attempt at remote code execution" (The Verge). Luxembourg: no institution has announced an intrusion (Paperjam). Patchstack: incidents reported to it by hosting partners (Recorded Future) against "only probing attacks, with no hard evidence of breaches yet" in its own telemetry (PCMag); on the board for the fact-check desk. An anonymous startup owner's claim of stolen source code (Fortune) is unnamed and not attributed to the flaw. | this site, from every captured source in the evidence vault (295 sources, head 1845598d9a38), as of its latest capture at 16:04 UTC on 23 October | reported | **A4** Corroborated●●●●○○ status overstated | 6/17 | CISA CISA Huntress Amazon SecurityWeek SecurityWeek Recorded Future Imperva Threat Research Weird Gloop Paperjam PCMag IT Social Lupa.cz Yahoo! News Japan 産経ニュース INTERNET Watch The Verge |
| The Dutch government took NCSC.nl offline as a precaution, with no active misuse seen yet; Dutch press reported DigiD, MijnOverheid and Overheid.nl offline tooThe government's notice names only NCSC.nl; DigiD and MijnOverheid rest on the press (fact-check desk, run 1: holds in part, overstated). | the Dutch government | reported | **A3****A4** Echoed●●●○○○ status overstatedCorroborated●●●●○○ | 1/2 | Rijksoverheid / NCSC-NL TPO.nl |
| Finland's state IT provider Valtori restricted public traffic to government web services from 12:45 local time on 21 October as a precaution | Yle; Helsinki Times, quoting Valtori | reported | **A2** Reported●●○○○○ | 0/2 | Yle Helsinki Times |
6 unchanged lines
The newsroom's own twelve claims, seeded from the BBC live page on the morning of 22 October, are in the vault as `claims/claude-newsroom-lead.json` and are superseded by the rows above, which trace each of them to primary sources. The raw rows are in data/claims.json.
v7 · site v0.12.1 · 24 October 2026 · 8 lines added or changed, 8 removed or changed, against v6 · 46eea2a7d2c7
# Every claim, with its status and sources
6 unchanged lines
70 claims: 2119 confirmed, 3436 reported, 8 disputed, 3 contradicted, 4 unverified. A claim is a sentence somebody said, with the party that said it, the captured sources it comes from, and one of five words for how far it can be trusted. The words are defined here, once, and the build refuses a claim whose sources are not in the manifest.
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| A web application firewall may provide some protection until systems are patchedSwiss BACS: 'Even a web application firewall alone is not sufficient.' Cloudflare says its rules blocked the traffic it saw and that attackers mutated payloads to get past them. | CISA | disputed | **A6** Established●●●●●● | 3/3 | CISA BACS Cloudflare |
| Pre-authenticationIn researchers' own tests, pre-authentication RCE was confirmed against WordPress, Drupal, Joomla, MediaWiki, Roundcube, Magento, phpMyAdmin, Nextcloud, Laravel, Symfony and WHMCSTwo researcher parties, no third-party reproduction in the vault. The demo videos were not downloaded. | Calif; Wiz for WordPress and Drupal | reported | **A2** Reported●●○○○○ | 2/2 | Calif Wiz |
| None of the public proof-of-concept exploits reviewed by VulnCheck has the correct mechanism; a lab reproduction of the leaked PoC's precondition produced a clean 200The Hacker News says the same of the public code. Fastly: working RCE needs knowledge of the running binary's layout on x86_64. | rjmendez (detection author) citing VulnCheck; Huntress | reported | **A1** Weak signal●○○○○○ status overstated | 1/2 | rjmendez, GitHub Huntress |
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| Roughly 70% of the Internet is affectedThe BBC was 'unable to independently verify that figure'. Wiz's body text says 70% of websites and cites no measurement. | Wiz (headline, X post); BBCthe attributingBBC, Wizwhich reports it as Wiz's 'roughly 70%' | unverified | **A1** Weak signal●○○○○○ measures differently | 2/3 | Wiz Wiz on X BBC News |
| PHP is used by almost 70% of websitesNonewebsites whose server-side language is knownNone of the three cites the survey it comes from. A share of websites using PHP is an upper bound on exposure, not a count of vulnerable systems. | Cloudflare; OpenAI ('an estimated 70%'); Wiz body text | reported | **A2** Reported●●○○○○ measures differently | 3/3 | Cloudflare OpenAI on X Wiz |
| Something like 30 million websites could be affectedNo basis given. | Alan Woodward, via the BBC | reported | **A2** Reported●●○○○○ | 0/1 | BBC News |
| PHPVulnCheck is exposed oncounts about 2.6 million internet-facing hosts,hosts exposing PHP; Censys, of whichthe Censys2.58 countedmillion hosts it saw, could read a version on 1.58 million, and 1.57 million of those were unpatched on 21 OctoberCensys: 2.58 million hosts seen, 1.58 million reporting a version, 1.57 million not patched; nearly 3 million by 22 October. VirusTotal: 5.1 million IPs running PHP, 1.1 million announcing a version. Unit 42: 22.6 million systems that 'could be vulnerable' (via Insurance Business). Censys's own post was not found. | VulnCheck and Censys, via The Hacker News and SecurityWeek | reported | **A2** Reported●●○○○○ measures differently | 0/2 | THN SecurityWeek |
| About 6,000 potentially affected resources in Latvia, a few hundred in the public sectorPrimary source, one country, says 'potentially'. | CERT.LV | reported | **A2** Reported●●○○○○ | 1/1 | CERT.LV |
53 unchanged lines
| watchTowr sees active exploitation attempts and lists the flaws as exploited in the wildwatchtowr.com returns HTTP 403 to this site's capture tool; known only from search summaries. | watchTowr | unverified | **A4** Corroborated●●●●○○ superseded | 2/2 | watchTowr watchTowr |
| The last PHP core RCE, CVE-2024-4577, was exploited in the wild one day after disclosure and in KEV three days after; php2shell is not in KEV after one dayCounteddayThe KEV dates are counted from the captured catalog.catalog; 'exploited in the wild one day after disclosure' rests on Akamai alone. | CISA KEV catalog; Akamai (2024) | confirmedreported | **A2** Reported●●○○○○ status overstated | 3/3 | CISA CVE record Akamai Security Research |
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| Latvia restricted access from abroad to several state digital resources, possibly until 26 October; lsm.lv and 112.lv were restored by 20:00 UTCThe one documented case of government services being pulled from the public internet, from the agency itself. | CERT.LV | confirmed | **A6** Established●●●●●● | 1/1 | CERT.LV |
| As of 20:5016:04 UTC on 2223 October, no named organisation has said it was compromised through php2shell. Exploitation attempts are widely reported, andin two security vendors,millions; Hadrian and Patchstack, report successfulreports exploitation withoutat scale and Patchstack received reports of incidents from hosting partners, neither naming anya victim.Avictim, and Patchstack's own telemetry showed only probing.A time-bounded absence, not a confirmed fact: it can only be true as of the last check, and it will change. Changed from "confirmed" on 22 October at the editor's requestrequest. (fact-check run 1 had marked it overstated; Perplexity and ChatGPT, askedRefreshed by the editor, said the same). Attempts are not compromises: watchTowr says "nobody has been successful to date"; Amazon says it is unclear whether any attempt would have succeededjournalist on real24 systems;October Patchstack's incidents are reports from hosting partners with no victim named. Source watch (vault oq9gflln), pending promotion intoagainst the evidence vault:vault at 1845598d9a38: the named cases (GMO, ČVUT, DMM, Valtec) are now in the vault, and none of them states php2shell as the cause (Valtec retracted). The PHP Foundation's executive director told The Verge and WIREDdirector: "to our knowledge, there has been no successful attempt at remote code execution" (raw/us/tech-press/the-verge/php2shell-websites-down/);(The officialsVerge). inLuxembourg: Germany,no theinstitution Netherlandshas and Japan say they have not seenannounced an attackintrusion succeed(Paperjam). (ThePatchstack: Nextincidents Web,reported raw/nl/tech-press/the-next-web/php2shell-no-confirmed-breaches/); GMO confirmed a break-in on 20 October on its FX trading VPS service (26,739 servers, logins possibly taken) without stating the cause (raw/jp/news/yahoo-news-jp/gmo-fx-login-leak/20261022T191523Z/); Czech Technical University saysto it stoppedby anhosting activepartners attack(Recorded thatFuture) wasagainst part"only probing attacks, with no hard evidence of worldwidebreaches attempts against PHP sites, success not established (raw/cz/tech-press/lupa/cvut-cyber-attack/20261022T191510Z/); Valtecyet" in Japan blamed php2shell for a break-in, then retracted: its own service'stelemetry flaw(PCMag); (raw/jp/tech-press/impress-watch/valtec-php-attack/20261022T191433Z/);on Fortunethe reportsboard anfor the fact-check desk. An anonymous startup ownerowner's allegingclaim of stolen source code,code (Fortune) is unnamed and not attributed to the flaw. Edited by researcher@php.newsroom. | this site, from every captured source in the evidence vault and(295 thesources, sourcehead watch,1845598d9a38), as of 20:50its latest capture at 16:04 UTC on 2223 October | reported | **A4** Corroborated●●●●○○ status overstated | 6/96/17 | CISA CISA Huntress Amazon SecurityWeek SecurityWeek Recorded Future Imperva Threat Research Weird Gloop Paperjam PCMag IT Social Lupa.cz Yahoo! News Japan 産経ニュース INTERNET Watch The Verge |
| The Dutch NCSCgovernment took its own siteNCSC.nl offline as a precaution, aswith didno active misuse seen yet; Dutch press reported DigiD, MijnOverheid and Overheid.nl,Overheid.nl withoffline notooThe signsgovernment's ofnotice activenames exploitationonly ofNCSC.nl; thoseDigiD servicesPrimaryand statement.MijnOverheid rest on the press (fact-check desk, run 1: holds in part, overstated). | the Dutch government | confirmedreported | **A3** Echoed●●●○○○ status overstated | 1/2 (1 blocked) | Rijksoverheid / NCSC-NL Dutch IT LeadersTPO.nl |
| Finland's state IT provider Valtori restricted public traffic to government web services from 12:45 local time on 21 October as a precaution | Yle; Helsinki Times, quoting Valtori | reported | **A2** Reported●●○○○○ | 0/2 | Yle Helsinki Times |
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The newsroom's own twelve claims, seeded from the BBC live page on the morning of 22 October, are in the vault as `claims/claude-newsroom-lead.json` and are superseded by the rows above, which trace each of them to primary sources. The raw rows are in data/claims.json.
v6 · site v0.5.8 · 22 October 2026 · 2 lines added or changed, 2 removed or changed, against v5 · a8d9718c0a80
# Every claim, with its status and sources
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70 claims: 2221 confirmed, 3334 reported, 8 disputed, 3 contradicted, 4 unverified. A claim is a sentence somebody said, with the party that said it, the captured sources it comes from, and one of five words for how far it can be trusted. The words are defined here, once, and the build refuses a claim whose sources are not in the manifest.
107 unchanged lines
| Latvia restricted access from abroad to several state digital resources, possibly until 26 October; lsm.lv and 112.lv were restored by 20:00 UTCThe one documented case of government services being pulled from the public internet, from the agency itself. | CERT.LV | confirmed | **A6** Established●●●●●● | 1/1 | CERT.LV |
| NoAs of 20:50 UTC on 22 October, no named organisation has confirmedsaid it was compromised through php2shell. Exploitation attempts are widely reported, and two security vendors, Hadrian and Patchstack, report successful exploitation without naming any victim.A time-bounded absence, not a compromiseconfirmed throughfact: php2shellAit negativecan findingonly be true as of the latestlast capture.check, and it will change. Changed from "confirmed" on 22 October at the editor's request (fact-check run 1 had marked it overstated; Perplexity and ChatGPT, asked by the editor, said the same). Attempts are not compromises: watchTowr says "nobody has been successful to date"; Amazon says 'broadlyit exploited'is unclear whether any attempt would have succeeded on real systems; Patchstack's incidents are reports from hosting partners with no victim named. Source watch (vault oq9gflln), pending promotion into the evidence vault: the PHP Foundation's executive director told The Verge and WIRED "to our knowledge, there has been no successful attempt at remote code execution" (raw/us/tech-press/the-verge/php2shell-websites-down/); officials in Germany, the Netherlands and Japan say they have not seen an attack succeed (The Next Web, raw/nl/tech-press/the-next-web/php2shell-no-confirmed-breaches/); GMO confirmed a break-in on 20 October on its FX trading VPS service (26,739 servers, logins possibly taken) without stating the cause (raw/jp/news/yahoo-news-jp/gmo-fx-login-leak/20261022T191523Z/); Czech Technical University says it stopped an active attack that was part of worldwide attempts against sensors;PHP Weirdsites, Gloopsuccess expectsnot oldestablished forums(raw/cz/tech-press/lupa/cvut-cyber-attack/20261022T191510Z/); Valtec in Japan blamed php2shell for a break-in, then retracted: its own service's flaw (raw/jp/tech-press/impress-watch/valtec-php-attack/20261022T191433Z/); Fortune reports an anonymous startup owner alleging stolen source code, unnamed and not attributed to havethe beenflaw. hit;Edited CISAby has not listed either CVE.researcher@php.newsroom. | this site, from every captured source in the evidence vault and the source watch, as of 20:50 UTC on 22 October | confirmedreported | **A4** Corroborated●●●●○○ status overstated | 5/56/9 | CISA CISA Huntress Amazon SecurityWeek SecurityWeek Recorded Future Imperva Threat Research Amazon Weird Gloop |
| The Dutch NCSC took its own site offline as a precaution, as did DigiD, MijnOverheid and Overheid.nl, with no signs of active exploitation of those servicesPrimary statement. | the Dutch government | confirmed | **A3** Echoed●●●○○○ status overstated | 1/2 (1 blocked) | Rijksoverheid / NCSC-NL Dutch IT Leaders |
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The newsroom's own twelve claims, seeded from the BBC live page on the morning of 22 October, are in the vault as `claims/claude-newsroom-lead.json` and are superseded by the rows above, which trace each of them to primary sources. The raw rows are in data/claims.json.
v5 · site v0.4.7 · 22 October 2026 · 86 lines added or changed, 86 removed or changed, against v4 · 135221912415
# Every claim, with its status and sources
17 unchanged lines
| Claim | Who says it | Status | Fact-check | Primary | Sources |
| Two critical vulnerabilities, CVE-2026-109618 and CVE-2026-109619, each CVSS v4.0 9.2, fixed in PHP 8.5.12, 8.4.27, 8.3.36 and 8.2.35 | PHP Group (CNA), GitHub advisories, php.net | confirmed | **A6** Established●●●●●● | 5/5 | CVE record CVE record PHP PHP php.net |
| The flaws are CVSS 10.0The PHP Foundation: 'a wrong CVSS score of 10.0 (the actual score is 9.2)'. Daubois traces it to a social post relayed by Phoenix Security and to watchTowr via Cyber Daily. | social posts on 20 October, relayed by a vendor and a news site | contradicted | refuted contradicted | 1/2 | PHP Foundation Daubois |
| Unauthenticated RCE over HTTP against Apache mod_php with default settings, before any application code runs | PHP security team (GHSA, oss-security), php.net | confirmed | **A6** Established●●●●●● | 3/3 | PHP oss-security php.net |
| Remote code execution is confirmed on PHP-FPMGHSA-w8hw (CVE-2026-109618): 'no complete FPM exploit has been demonstrated for this SAPI'. The Foundation blog: RCE 'was also confirmed on PHP-FPM through application-level code paths'. GHSA-6wmf (CVE-2026-109619): session lifecycle RCE 'validated against mod_php and FPM'. The accounts may refer to different CVEs. | PHP Foundation blog; GHSA-6wmf for the session path | disputed | **A6** Established●●●●●● | 4/4 | PHP Foundation PHP PHP oss-security |
| The fix removes longjmp() for out-of-memory errors in favour of a delayed soft OOM at the next VM safe point and a hard OOM via _exit(); the changelog line is 'Avoid state corruption via bailout' | PHP security team | confirmed | **A6** Established●●●●●● | 3/3 | PHP php.net php-src |
| The 8.5.12 fix may be incomplete, or there is a third, different bugPer a Matrix channel, Canonical asked PHP and 'was told that it's unrelated and not a real issue'. Second-hand. Nothing from PHP on the list at capture. | Fediverse posts relayed to oss-security by Aaron Rainbolt and Yves-Alexis Perez | unverified | **A1** Weak signal●○○○○○ opinion disputed | 0/1 | oss-security |
| All PHP versions from 5 onwards are affected by at least one of the flawsThe CVE records list only 8.2 to 8.5 with defaultStatus 'unaffected'. php.net published source backports for 7.4, 8.0 and 8.1, which implies they are affected. A scanner that trusts the CVE record will miss 7.4 to 8.1. | NCSC-NL; Wiz ('>= 5.4'); CERT-FR (5.x, 6.x, 7.x, 8.0, 8.1) | disputed | **A3** Echoed●●●○○○ disputed | 3/4 | NCSC-NL Wiz on X CERT-FR oss-security |
| Updating is the only complete mitigation; the configuration measures reduce exposure to specific paths and do not make an installation safe | php.net; PHP security team | confirmed | **A6** Established●●●●●● | 3/3 | php.net oss-security PHP |
| A web application firewall may provide some protection until systems are patchedSwiss BACS: 'Even a web application firewall alone is not sufficient.' Cloudflare says its rules blocked the traffic it saw and that attackers mutated payloads to get past them. | CISA | disputed | **A6** Established●●●●●● | 3/3 | CISA BACS Cloudflare |
| Pre-authentication RCE was confirmed against WordPress, Drupal, Joomla, MediaWiki, Roundcube, Magento, phpMyAdmin, Nextcloud, Laravel, Symfony and WHMCSTwo researcher parties, no third-party reproduction in the vault. The demo videos were not downloaded. | Calif; Wiz for WordPress and Drupal | reported | **A2** Reported●●○○○○ | 2/2 | Calif Wiz |
| None of the public proof-of-concept exploits reviewed by VulnCheck has the correct mechanism; a lab reproduction of the leaked PoC's precondition produced a clean 200The Hacker News says the same of the public code. Fastly: working RCE needs knowledge of the running binary's layout on x86_64. | rjmendez (detection author) citing VulnCheck; Huntress | reported | **A1** Weak signal●○○○○○ status overstated | 1/2 | rjmendez, GitHub Huntress |
| Triggering the bug is much easier than turning it into code execution; the CVSS vector says attack complexity highFastly: 'most deployments may be safe from RCE. Do not assume this holds true for you.' Imperva: five demonstrated techniques, three via session upload progress; about 67 KB of memory disclosed per attack. | Imperva; Fastly; the CVE record | confirmed | **A3** Echoed●●●○○○ opinion status overstated | 3/3 | Imperva Threat Research Fastly CVE record |
| Both bugs are in the C engine, not in PHP code: the allocator's longjmp-based bailout on out-of-memory, and request globals that survive a failed requestThe fix replaces bailout with a delayed error and an UnwindExit at a safe point, adds a hard limit that _exits, and resets the globals. See the code page. | php/php-src fix commit; the GitHub advisories | confirmed | **A6** Established●●●●●● | 3/3 | php/php-src, read from a clone PHP PHP |
| Patching the demonstrated paths does not make the bailout mechanism safe; more paths should be expectedA position, from a vendor; consistent with the Fediverse report of a third bug. | Fastly | reported | **A2** Reported●●○○○○ opinion | 1/2 | Fastly oss-security |
## How big it is
| Claim | Who says it | Status | Fact-check | Primary | Sources |
| Roughly 70% of the Internet is affectedThe BBC was 'unable to independently verify that figure'. Wiz's body text says 70% of websites and cites no measurement. | Wiz (headline, X post); BBC attributing Wiz | unverified | **A1** Weak signal●○○○○○ measures differently | 2/3 | Wiz Wiz on X BBC News |
| PHP is used by almost 70% of websitesNone of the three cites the survey it comes from. A share of websites using PHP is an upper bound on exposure, not a count of vulnerable systems. | Cloudflare; OpenAI ('an estimated 70%'); Wiz body text | reported | **A2** Reported●●○○○○ measures differently | 3/3 | Cloudflare OpenAI on X Wiz |
| Something like 30 million websites could be affectedNo basis given. | Alan Woodward, via the BBC | reported | **A2** Reported●●○○○○ | 0/1 | BBC News |
| PHP is exposed on about 2.6 million internet-facing hosts, of which Censys counted 1.57 million unpatched on 21 OctoberCensys: 2.58 million hosts seen, 1.58 million reporting a version, 1.57 million not patched; nearly 3 million by 22 October. VirusTotal: 5.1 million IPs running PHP, 1.1 million announcing a version. Unit 42: 22.6 million systems that 'could be vulnerable' (via Insurance Business). Censys's own post was not found. | VulnCheck and Censys, via The Hacker News and SecurityWeek | reported | **A2** Reported●●○○○○ measures differently | 0/2 | THN SecurityWeek |
| About 6,000 potentially affected resources in Latvia, a few hundred in the public sectorPrimary source, one country, says 'potentially'. | CERT.LV | reported | **A2** Reported●●○○○○ | 1/1 | CERT.LV |
| 674 products in the NCSC-NL inventory: 206 vulnerable, 46 fixed, 418 under investigation, 3 not vulnerableCounted, not quoted. NCSC-NL calls unbacked entries 'investigation leads'. | NCSC-NL, counted by this site from the file at commit cca173c64ec5 | confirmed | **A1** Weak signal●○○○○○ contradicted status overstated | 1/1 | NCSC-NL |
## Who found it, and how
| Claim | Who says it | Status | Fact-check | Primary | Sources |
| The flaws were found by researchers using frontier AI under OpenAI's Patch the Planet initiativeAll three research parties say AI was used. Calif: 'No special harness, or access to models that weren't generally available to everyone were used'. Calif does not name a model; Wiz names Gemini 4 Argon, GPT-5.6 Sol and Wiz Atlas; OpenAI's blog reportedly names GPT-5.6 Sol but is blocked. | BBC; OpenAI; Calif; Wiz | reported | **A3** Echoed●●●○○○ opinion measures differently | 3/4 | BBC News OpenAI on X Calif Wiz |
| Calif found the flaws first: discovery 1 August, hash commitment 5 August, report to PHP 11 AugustThe hash tweet is dated 5 August 2026 on X; its pre-image has not been published, so what it commits to cannot be checked. | Calif; PHP Foundation (report date) | confirmed | **A3** Echoed●●●○○○ opinion measures differently status overstated | 3/3 | Calif Ryan Austin, Calif on X PHP Foundation |
| OpenAI independently reported the same root cause on 11 August, with further vectors on 18 SeptemberThe GitHub advisories credit amyb-oai among four reporters. OpenAI's own post credits Calif's discovery 'using GPT-5.6 Sol' and Wiz; an X Community Note disputes OpenAI's role. | PHP Foundation | reported | **A2** Reported●●○○○○ disputed | 2/2 | PHP Foundation PHP |
| Wiz Research independently discovered the first flaw on 19 August and reported on 24 AugustWiz's X post says 'Wiz Research uncovers' with no credit to Calif or OpenAI; the blog thanks both. | Wiz; PHP Foundation (24 August) | reported | **A2** Reported●●○○○○ | 2/2 | Wiz PHP Foundation |
| The GitHub advisories credit four reporters: lcfr-hax (Calif), sagitzadik-wiz (Wiz), amyb-oai (OpenAI) and tomash-areiontomash-areion is not named in the PHP Foundation's thanks and appears nowhere else on this beat. | GitHub security advisories | confirmed | **A6** Established●●●●●● | 2/3 | PHP PHP Daubois |
| The out-of-memory issue was found in a 2024 audit by Quarkslab (funded through OSTIF and the Sovereign Tech Agency) but exploitation was not proven, so it was not fixedTwo parties agree. The Foundation calls the delay 'a structural failure'. Cloudflare lists Quarkslab among the 2026 disclosers; nobody else does. | PHP Foundation; Calif | confirmed | **A2** Reported●●○○○○ disputed status overstated | 2/2 | PHP Foundation Calif |
| Frontier AI found the flaw ahead of attackers, giving defenders time to prepareAmazon reports an exploit attempt against a honeypot on 17 October, four days before disclosure, from an actor whose source of exploit information is unknown. | OpenAI | disputed | **A2** Reported●●○○○○ opinion disputed | 1/2 | OpenAI on X THN |
| The most severe flaws ever detected by AIWiz's own wording is 'among the most severe vulnerabilities discovered in PHP, and arguably in software history'. OpenAI: 'one of the most impactful vulnerabilities in recent memory'. | BBC attributing Wiz | reported | **A2** Reported●●○○○○ opinion measures differently | 1/2 | BBC News Wiz |
| Quarkslab's published audit summary lists 27 findings, two redacted because their fixes were complex and in progress; it does not describe an out-of-memory findingThe Foundation says the OOM signs were found while fixing one of the audit's findings, not in the audit report itself. | Quarkslab's blog; a Substack analysis | reported | **A6** Established●●●●●● | 1/2 | Quarkslab David Lopez-Kurtz |
| Chainguard's team found the same bugs independently with an AI harness and a frontier model after a researcher warned them on the Friday beforeUnverified by anyone else. | Dan Lorenc, via The Register | reported | **A2** Reported●●○○○○ | 0/1 | The Register |
## The leak
| Claim | Who says it | Status | Fact-check | Primary | Sources |
| On 20 October at about 15:00 UTC the two CVE IDs began circulating on forums and social media with a wrong release time and a wrong CVSS score; no technical details leakedPrimary party. The Foundation does not say who or where. | PHP Foundation | reported | **A2** Reported●●○○○○ disputed | 2/2 | PHP Foundation PHP Foundation |
| The leak started with an anonymous Hacker News post citing a reliable source, which came down after screenshots spread; a screenshot of the 'PHP2Shell tool' credited to Calif.io and a short exploitation video also went up and came downContradicts the Foundation's 'no technical details leaked' and The Hacker News's 'a proof-of-concept exploit leaked'. No copy of the post, screenshot or video is in the vault. | Alexandre Daubois (PHP security team, personal blog) | reported | **A2** Reported●●○○○○ disputed | 0/1 | Daubois |
| watchTowr confirmed in public that the bugs were real and posted both CVE numbers before the release | Daubois; CERT-EU lists a watchTowr X post among public reports | reported | **A4** Corroborated●●●●○○ | 1/2 | Daubois CERT-EU |
| Calif mistakenly published a video around 20:00 UTC on 20 October showing its proof of concept against a number of targets; copies circulated and 'contributed to accelerated development of various PoCs'Calif's own page does not mention a leak or a deleted video; it embeds two demo videos. Whether one of them is the deleted video is unknown. | PHP Foundation | reported | **A3** Echoed●●●○○○ | 3/4 | PHP Foundation PHP Foundation BBC News Calif |
| Mitigation advice given to a few critical-infrastructure providers from about 23:00 UTC on 20 October may have leaked | PHP Foundation | reported | **A2** Reported●●○○○○ | 1/1 | PHP Foundation |
| Chainguard unilaterally broke the embargo on 21 October at 07:41 UTC by publishing built images containing the fixDan Lorenc (via The Register): 'I made the call to get these out early when exploits hit in the wild'; several unnamed vendors had reported exploits; Chainguard's honeypots trapped IPs; a researcher warned the company on the Friday and its team then found the bugs independently with an AI harness. No evidence published. The PHP security team found no functional exploit by release time. | PHP Foundation; Chainguard's CEO accepts the time and denies leaking | disputed | **A2** Reported●●○○○○ opinion disputed | 1/3 | PHP Foundation The Register Feross Aboukhadijeh on X on X |
| The release moved forward from 22 October 14:00 UTC to 21 October 14:00 UTC because of the leakThe php.net ChangeLog still dates all four releases 22 October. Wiz's X thread still says 22 October. | PHP Foundation; php.net pre-announcement; Wiz thread ('Apply the Oct 22 security release') | confirmed | **A4** Corroborated●●●●○○ measures differently status overstated | 4/4 | PHP Foundation oss-security Wiz on X php.net |
## When things happened
| Claim | Who says it | Status | Fact-check | Primary | Sources |
| The flaws were disclosed on 22 October 2026Primary sources put the release at 21 October: GHSAs 13:34Z, tags 13:35Z, CVE records 13:48Z and 13:54Z, GitHub release 14:06Z. | BBC framing (UK morning coverage) | contradicted | refuted measures differently | 2/3 | BBC News php.net php-src |
| The fixes were released at 14:00 UTC on 21 OctoberCERT-EU says 13:30 UTC; the tags and advisories are stamped 13:34 to 13:35 UTC; the GitHub release 14:06 UTC; the php.net feed entries carry 00:05 to 00:35 UTC, which are authoring times, not publication times. | php.net pre-announcement; Daubois; CERT-FR (16:00 Paris) | disputed | **A2** Reported●●○○○○ disputed | 7/8 | oss-security Daubois CERT-FR CERT-EU php-src PHP php-src php.net |
| The pre-announcement was published at 19:30 UTC on 20 OctoberThe php.net feed says 20:32 UTC; oss-security relayed it at 20:22:51 UTC, so it was public by then. | PHP Foundation | disputed | **A2** Reported●●○○○○ disputed | 3/3 | PHP Foundation oss-security php.net |
| The fix was authored on 18 October at 15:26 UTC and entered the public branches at 14:06 UTC on 21 October, with merges into 8.3, 8.4 and 8.5 between 14:12 and 14:30 UTCCounted from the repository, not from a page. Five authors; 389 files; 10,689 insertions. | php/php-src commit 3584a98bd, read from a clone | confirmed | **A6** Established●●●●●● | 2/2 | php/php-src, read from a clone php-src |
## Exploitation
| Claim | Who says it | Status | Fact-check | Primary | Sources |
| There is no evidence yet that hackers have exploited the flaw | Ryan Austin, Calif, on Radio 4, 08:00 BST 22 October | reported | **A2** Reported●●○○○○ disputed | 0/1 | BBC News |
| CISA has not observed exploitation; neither CVE is in the Known Exploited Vulnerabilities catalogCatalog version 2026.10.21 fetched 2026-10-22T08:15Z, 1,754 entries. A point-in-time negative finding. | CISA | confirmed | **A6** Established●●●●●● | 3/3 | CISA CISA CVE record |
| Reports of active exploitation existThe only agency saying so, and it does not say whose reports. | NCSC New Zealand | reported | **A2** Reported●●○○○○ disputed | 1/1 | NCSC New Zealand |
| An exploit attempt hit an Amazon honeypot on 17 October from an anonymisation network; proof-of-concept attempts began about 02:00 UTC on 21 October from multiple actors; after release 'PHP2Shell is now being broadly exploited in the wild'Primary party. Amazon adds: 'it's unclear if any of these attempts would have succeeded in real-world systems'. Attempts against honeypots, not compromises of victims. | Amazon (CJ Moses, AWS Security Blog) | reported | **A2** Reported●●○○○○ disputed | 1/2 | Amazon THN |
| Cloudflare observed attack traffic targeting its customers after the leak, with attackers mutating payloadsPrimary party, no volumes. | Cloudflare | reported | **A2** Reported●●○○○○ | 1/1 | Cloudflare |
| Amazon and Cloudflare saw sites being probed for the flawBoth companies have since said so themselves. | Alan Woodward, via the BBC; confirmed by both companies' own posts | confirmed | **A5** Confirmed●●●●●○ | 2/3 | BBC News Cloudflare Amazon |
| Automated exploitation attempts were seen in Latvia; none succeededPrimary source. | CERT.LV | reported | **A2** Reported●●○○○○ | 1/1 | CERT.LV |
| Criminals are using AI to 'vibe code' an attack method | unnamed researchers, via the BBC | unverified | **A1** Weak signal●○○○○○ opinion | 0/1 | BBC News |
| Exploit attempts across Cloudflare's network: thousands in the ten hours before announcement, tens of thousands within 45 minutes after, hundreds of thousands within two hours, millions by 22 October 01:25 UTCPrimary party. Attempts, not compromises; no blocked count; 1.4 million views at capture. | Matthew Prince, Cloudflare CEO, on X | reported | **A2** Reported●●○○○○ measures differently | 1/1 | Matthew Prince, Cloudflare CEO on… |
| No traffic matching the php2shell exploit patterns was seen during Imperva's pre-disclosure monitoringA negative finding from a party that had the details under embargo. | Imperva Threat Research | reported | **A2** Reported●●○○○○ measures differently | 1/1 | Imperva Threat Research |
| No exploitation observed on Huntress partner systems as of 20:30 UTC on 21 October; no public exploit code known to Huntress | Huntress | reported | **A2** Reported●●○○○○ disputed | 1/1 | Huntress |
| watchTowr sees active exploitation attempts and lists the flaws as exploited in the wildwatchtowr.com returns HTTP 403 to this site's capture tool; known only from search summaries. | watchTowr | unverified | **A4** Corroborated●●●●○○ superseded | 2/2 | watchTowr watchTowr |
| The last PHP core RCE, CVE-2024-4577, was exploited in the wild one day after disclosure and in KEV three days after; php2shell is not in KEV after one dayCounted from the captured catalog. | CISA KEV catalog; Akamai (2024) | confirmed | **A2** Reported●●○○○○ status overstated | 3/3 | CISA CVE record Akamai Security Research |
## What the agencies advise
| Claim | Who says it | Status | Fact-check | Primary | Sources |
| If an immediate update is not feasible, take the system offline until it can be fully mitigatedX post 13:45:58Z 21 October (10.1 million views at capture) and the press release. | NSA Cybersecurity | confirmed | **A6** Established●●●●●● | 2/2 | NSA Cyber on X NSA |
| Organisations that cannot update immediately, or that run PHP 8.1 or older, should take PHP-based systems offline | CISA | confirmed | **A6** Established●●●●●● | 1/1 | CISA |
| 'Where immediate remediation is not feasible, organisations should consider taking the system offline until it can be fully mitigated'That sentence is not on the NCSC page as captured at 08:09Z on 22 October. The page's offline advice is step 4 of 6 and is worded differently. The page was modified at 07:30Z that morning. The sentence's opening matches the Canadian CCCS text. | UK NCSC, as quoted by the BBC | disputed | **A2** Reported●●○○○○ disputed | 2/3 | BBC News NCSC UK CCCS |
| The UK's NCSC, the NSA and their counterparts in the EU and Australia advise taking systems offline where patching is not feasibleAustralia's ACSC gives no offline advice. CERT-EU says isolate. The Netherlands, Italy, Japan and New Zealand give no offline advice. | BBC | contradicted | **A1** Weak signal●○○○○○ | 4/6 | BBC News ACSC CERT-EU NCSC-NL ACN / CSIRT Italia JPCERT/CC |
| The risks require immediate patching across United States Government departments and agenciesNo CISA emergency directive was visible on the CISA home page at capture. | NSA | reported | **A6** Established●●●●●● | 1/2 | NSA CISA |
| Edge protections went live hours before disclosure: Cloudflare at 03:02 UTC; Imperva, Akamai and Fastly on 21 October; Fortinet signatures by 22 OctoberEvery vendor says the same two things: it is a stopgap, and patch anyway. | the vendors | confirmed | **A2** Reported●●○○○○ status overstated | 5/5 | Cloudflare Imperva Threat Research Akamai Security Research Fastly Fortinet Community |
## What was taken offline
| Claim | Who says it | Status | Fact-check | Primary | Sources |
| Parts of Wikipedia, Edinburgh council, French government sites, the University of Geneva, online shops and the BBC were affected or taken offlineNot captured from any of the named organisations. | BBC | reported | **A2** Reported●●○○○○ | 0/1 | BBC News |
| Latvia restricted access from abroad to several state digital resources, possibly until 26 October; lsm.lv and 112.lv were restored by 20:00 UTCThe one documented case of government services being pulled from the public internet, from the agency itself. | CERT.LV | confirmed | **A6** Established●●●●●● | 1/1 | CERT.LV |
| No named organisation has confirmed a compromise through php2shellA negative finding as of the latest capture. Amazon says 'broadly exploited' against sensors; Weird Gloop expects old forums to have been hit; CISA has not listed either CVE. | this site, from every captured source | confirmed | **A4** Corroborated●●●●○○ status overstated | 5/5 | CISA Huntress Imperva Threat Research Amazon Weird Gloop |
| The Dutch NCSC took its own site offline as a precaution, as did DigiD, MijnOverheid and Overheid.nl, with no signs of active exploitation of those servicesPrimary statement. | the Dutch government | confirmed | **A3** Echoed●●●○○○ status overstated | 1/2 (1 blocked) | Rijksoverheid / NCSC-NL Dutch IT Leaders |
| Finland's state IT provider Valtori restricted public traffic to government web services from 12:45 local time on 21 October as a precaution | Yle; Helsinki Times, quoting Valtori | reported | **A2** Reported●●○○○○ | 0/2 | Yle Helsinki Times |
| The Wikimedia Foundation took down a number of systems 'as a precautionary measure until they can be safely patched'No Wikimedia-published statement captured. | the Foundation, as quoted by CNN and The Cyber Express | reported | **A4** Corroborated●●●●○○ | 0/2 | CNN The Cyber Express |
| Weird Gloop turned off its wiki web servers for 13 hours and still served about 94% of page views from cachePrimary, and the one outage with a measured cost. | Weird Gloop | confirmed | **A2** Reported●●○○○○ status overstated | 1/1 | Weird Gloop |
| Edinburgh council's site went offline late on 21 October; the council called it 'essential maintenance' and did not confirm a link | The Scotsman quoting the council | reported | **A3** Echoed●●●○○○ | 0/1 | The Scotsman |
| Oxford City Council: 'a precaution because of a worldwide issue with the underlying technology and is not a cyber incident' | the council's social post, via Oxford Chronicle | reported | **A2** Reported●●○○○○ | 0/1 | Oxford Chronicle |
| Edinburgh and Oxford councils, the Met Police and the Office for Budget Responsibility were unavailable; Bristol, Lambeth and Barnet council sites showed errors | LBC; Insurance Business | reported | **A3** Echoed●●●○○○ | 0/2 | LBC Insurance Business |
The newsroom's own twelve claims, seeded from the BBC live page on the morning of 22 October, are in the vault as `claims/claude-newsroom-lead.json` and are superseded by the rows above, which trace each of them to primary sources. The raw rows are in data/claims.json.
v4 · site v0.3.1 · 22 October 2026 · reconstructed from git · 4 lines added or changed, 4 removed or changed, against v3 · 236496738b59
# Every claim, with its status and sources
31 unchanged lines
| Triggering the bug is much easier than turning it into code execution; the CVSS vector says attack complexity highFastly: 'most deployments may be safe from RCE. Do not assume this holds true for you.' Imperva: five demonstrated techniques, three via session upload progress; about 67 KB of memory disclosed per attack. | Imperva; Fastly; the CVE record | confirmed | 3/3 | Imperva Threat Research Fastly CVE record |
| Both bugs are in the C engine, not in PHP code: the allocator's longjmp-based bailout on out-of-memory, and request globals that survive a failed requestThe fix replaces bailout with a delayed error and an UnwindExit at a safe point, adds a hard limit that _exits, and resets the globals. See the code page. | php/php-src fix commit; the GitHub advisories | confirmed | 3/3 | php/php-src ,php/php-src, read from a clone PHP PHP |
| Patching the demonstrated paths does not make the bailout mechanism safe; more paths should be expectedA position, from a vendor; consistent with the Fediverse report of a third bug. | Fastly | reported | 1/2 | Fastly oss-security |
16 unchanged lines
| The flaws were found by researchers using frontier AI under OpenAI's Patch the Planet initiativeAll three research parties say AI was used. Calif: 'No special harness, or access to models that weren't generally available to everyone were used'. Calif does not name a model; Wiz names Gemini 4 Argon, GPT-5.6 Sol and Wiz Atlas; OpenAI's blog reportedly names GPT-5.6 Sol but is blocked. | BBC; OpenAI; Calif; Wiz | reported | 3/4 | BBC News OpenAI on X Calif Wiz |
| Calif found the flaws first: discovery 1 August, hash commitment 5 August, report to PHP 11 AugustThe hash tweet is dated 5 August 2026 on X; its pre-image has not been published, so what it commits to cannot be checked. | Calif; PHP Foundation (report date) | confirmed | 3/3 | Calif Ryan Austin ,Austin, Calif on X PHP Foundation |
| OpenAI independently reported the same root cause on 11 August, with further vectors on 18 SeptemberThe GitHub advisories credit amyb-oai among four reporters. OpenAI's own post credits Calif's discovery 'using GPT-5.6 Sol' and Wiz; an X Community Note disputes OpenAI's role. | PHP Foundation | reported | 2/2 | PHP Foundation PHP |
26 unchanged lines
| The pre-announcement was published at 19:30 UTC on 20 OctoberThe php.net feed says 20:32 UTC; oss-security relayed it at 20:22:51 UTC, so it was public by then. | PHP Foundation | disputed | 3/3 | PHP Foundation oss-security php.net |
| The fix was authored on 18 October at 15:26 UTC and entered the public branches at 14:06 UTC on 21 October, with merges into 8.3, 8.4 and 8.5 between 14:12 and 14:30 UTCCounted from the repository, not from a page. Five authors; 389 files; 10,689 insertions. | php/php-src commit 3584a98bd, read from a clone | confirmed | 2/2 | php/php-src ,php/php-src, read from a clone php-src |
11 unchanged lines
| Criminals are using AI to 'vibe code' an attack method | unnamed researchers, via the BBC | unverified | 0/1 | BBC News |
| Exploit attempts across Cloudflare's network: thousands in the ten hours before announcement, tens of thousands within 45 minutes after, hundreds of thousands within two hours, millions by 22 October 01:25 UTCPrimary party. Attempts, not compromises; no blocked count; 1.4 million views at capture. | Matthew Prince, Cloudflare CEO, on X | reported | 1/1 | Matthew Prince ,Prince, Cloudflare CEO onon… |
| No traffic matching the php2shell exploit patterns was seen during Imperva's pre-disclosure monitoringA negative finding from a party that had the details under embargo. | Imperva Threat Research | reported | 1/1 | Imperva Threat Research |
30 unchanged lines
The newsroom's own twelve claims, seeded from the BBC live page on the morning of 22 October, are in the vault as `claims/claude-newsroom-lead.json` and are superseded by the rows above, which trace each of them to primary sources. The raw rows are in data/claims.json.
v3 · site v0.3.0 · 22 October 2026 · reconstructed from git · 2 lines added or changed, 0 removed or changed, against v2 · 5053afe45bb2
# Every claim, with its status and sources
3 unchanged lines
# Every claim, and who makes it
In plain English Every statement made about the story, who made it, and how far it can be trusted, with links to the evidence.
119 unchanged lines
The newsroom's own twelve claims, seeded from the BBC live page on the morning of 22 October, are in the vault as `claims/claude-newsroom-lead.json` and are superseded by the rows above, which trace each of them to primary sources. The raw rows are in data/claims.json.
v2 · site v0.2.0 · 22 October 2026 · reconstructed from git · 89 lines added or changed, 67 removed or changed, against v1 · f057564d2cee
# Every claim, with its status and sources
# Every claim, and who makes it
4 unchanged lines
- unverified even the reporting outlet could not check it
- p/n primary sources among the n cited; a blocked capture is counted and marked
## The flaws themselves
| Claim | Who says it | Status | Sources |
|---|---|---|---|
| Two critical vulnerabilities, CVE-2026-109618 and CVE-2026-109619, each CVSS v4.0 9.2, fixed in PHP 8.5.12, 8.4.27, 8.3.36 and 8.2.35 | PHP Group (CNA), GitHub advisories, php.net | confirmed | CVE record CVE record PHP PHP php.net |
| The flaws are CVSS 10.0The PHP Foundation: 'a wrong CVSS score of 10.0 (the actual score is 9.2)'. Daubois traces it to a social post relayed by Phoenix Security and to watchTowr via Cyber Daily. | social posts on 20 October, relayed by a vendor and a news site | contradicted | PHP Foundation Daubois |
| Unauthenticated RCE over HTTP against Apache mod_php with default settings, before any application code runs | PHP security team (GHSA, oss-security), php.net | confirmed | PHP oss-security php.net |
| Remote code execution is confirmed on PHP-FPMGHSA-w8hw (CVE-2026-109618): 'no complete FPM exploit has been demonstrated for this SAPI'. The Foundation blog: RCE 'was also confirmed on PHP-FPM through application-level code paths'. GHSA-6wmf (CVE-2026-109619): session lifecycle RCE 'validated against mod_php and FPM'. The accounts may refer to different CVEs. | PHP Foundation blog; GHSA-6wmf for the session path | disputed | PHP Foundation PHP PHP oss-security |
| The fix removes longjmp() for out-of-memory errors in favour of a delayed soft OOM at the next VM safe point and a hard OOM via _exit(); the changelog line is 'Avoid state corruption via bailout' | PHP security team | confirmed | PHP php.net php-src |
| The 8.5.12 fix may be incomplete, or there is a third, different bugPer a Matrix channel, Canonical asked PHP and 'was told that it's unrelated and not a real issue'. Second-hand. Nothing from PHP on the list at capture. | Fediverse posts relayed to oss-security by Aaron Rainbolt and Yves-Alexis Perez | unverified | oss-security |
| All PHP versions from 5 onwards are affected by at least one of the flawsThe CVE records list only 8.2 to 8.5 with defaultStatus 'unaffected'. php.net published source backports for 7.4, 8.0 and 8.1, which implies they are affected. A scanner that trusts the CVE record will miss 7.4 to 8.1. | NCSC-NL; Wiz ('>= 5.4'); CERT-FR (5.x, 6.x, 7.x, 8.0, 8.1) | disputed | NCSC-NL Wiz on X CERT-FR oss-security |
| Updating is the only complete mitigation; the configuration measures reduce exposure to specific paths and do not make an installation safe | php.net; PHP security team | confirmed | php.net oss-security PHP |
| A web application firewall may provide some protection until systems are patchedSwiss BACS: 'Even a web application firewall alone is not sufficient.' Cloudflare says its rules blocked the traffic it saw and that attackers mutated payloads to get past them. | CISA | disputed | CISA BACS Cloudflare |
| Pre-authentication RCE was confirmed against WordPress, Drupal, Joomla, MediaWiki, Roundcube, Magento, phpMyAdmin, Nextcloud, Laravel, Symfony and WHMCSTwo researcher parties, no third-party reproduction in the vault. The demo videos were not downloaded. | Calif; Wiz for WordPress and Drupal | reported | Calif Wiz |
| Claim | Who says it | Status | Primary | Sources |
|---|---|---|---|---|
| Two critical vulnerabilities, CVE-2026-109618 and CVE-2026-109619, each CVSS v4.0 9.2, fixed in PHP 8.5.12, 8.4.27, 8.3.36 and 8.2.35 | PHP Group (CNA), GitHub advisories, php.net | confirmed | 5/5 | CVE record CVE record PHP PHP php.net |
| The flaws are CVSS 10.0The PHP Foundation: 'a wrong CVSS score of 10.0 (the actual score is 9.2)'. Daubois traces it to a social post relayed by Phoenix Security and to watchTowr via Cyber Daily. | social posts on 20 October, relayed by a vendor and a news site | contradicted | 1/2 | PHP Foundation Daubois |
| Unauthenticated RCE over HTTP against Apache mod_php with default settings, before any application code runs | PHP security team (GHSA, oss-security), php.net | confirmed | 3/3 | PHP oss-security php.net |
| Remote code execution is confirmed on PHP-FPMGHSA-w8hw (CVE-2026-109618): 'no complete FPM exploit has been demonstrated for this SAPI'. The Foundation blog: RCE 'was also confirmed on PHP-FPM through application-level code paths'. GHSA-6wmf (CVE-2026-109619): session lifecycle RCE 'validated against mod_php and FPM'. The accounts may refer to different CVEs. | PHP Foundation blog; GHSA-6wmf for the session path | disputed | 4/4 | PHP Foundation PHP PHP oss-security |
| The fix removes longjmp() for out-of-memory errors in favour of a delayed soft OOM at the next VM safe point and a hard OOM via _exit(); the changelog line is 'Avoid state corruption via bailout' | PHP security team | confirmed | 3/3 | PHP php.net php-src |
| The 8.5.12 fix may be incomplete, or there is a third, different bugPer a Matrix channel, Canonical asked PHP and 'was told that it's unrelated and not a real issue'. Second-hand. Nothing from PHP on the list at capture. | Fediverse posts relayed to oss-security by Aaron Rainbolt and Yves-Alexis Perez | unverified | 0/1 | oss-security |
| All PHP versions from 5 onwards are affected by at least one of the flawsThe CVE records list only 8.2 to 8.5 with defaultStatus 'unaffected'. php.net published source backports for 7.4, 8.0 and 8.1, which implies they are affected. A scanner that trusts the CVE record will miss 7.4 to 8.1. | NCSC-NL; Wiz ('>= 5.4'); CERT-FR (5.x, 6.x, 7.x, 8.0, 8.1) | disputed | 3/4 | NCSC-NL Wiz on X CERT-FR oss-security |
| Updating is the only complete mitigation; the configuration measures reduce exposure to specific paths and do not make an installation safe | php.net; PHP security team | confirmed | 3/3 | php.net oss-security PHP |
| A web application firewall may provide some protection until systems are patchedSwiss BACS: 'Even a web application firewall alone is not sufficient.' Cloudflare says its rules blocked the traffic it saw and that attackers mutated payloads to get past them. | CISA | disputed | 3/3 | CISA BACS Cloudflare |
| Pre-authentication RCE was confirmed against WordPress, Drupal, Joomla, MediaWiki, Roundcube, Magento, phpMyAdmin, Nextcloud, Laravel, Symfony and WHMCSTwo researcher parties, no third-party reproduction in the vault. The demo videos were not downloaded. | Calif; Wiz for WordPress and Drupal | reported | 2/2 | Calif Wiz |
| None of the public proof-of-concept exploits reviewed by VulnCheck has the correct mechanism; a lab reproduction of the leaked PoC's precondition produced a clean 200The Hacker News says the same of the public code. Fastly: working RCE needs knowledge of the running binary's layout on x86_64. | rjmendez (detection author) citing VulnCheck; Huntress | reported | 1/2 | rjmendez, GitHub Huntress |
| Triggering the bug is much easier than turning it into code execution; the CVSS vector says attack complexity highFastly: 'most deployments may be safe from RCE. Do not assume this holds true for you.' Imperva: five demonstrated techniques, three via session upload progress; about 67 KB of memory disclosed per attack. | Imperva; Fastly; the CVE record | confirmed | 3/3 | Imperva Threat Research Fastly CVE record |
| Both bugs are in the C engine, not in PHP code: the allocator's longjmp-based bailout on out-of-memory, and request globals that survive a failed requestThe fix replaces bailout with a delayed error and an UnwindExit at a safe point, adds a hard limit that _exits, and resets the globals. See the code page. | php/php-src fix commit; the GitHub advisories | confirmed | 3/3 | php/php-src , read from a clone PHP PHP |
| Patching the demonstrated paths does not make the bailout mechanism safe; more paths should be expectedA position, from a vendor; consistent with the Fediverse report of a third bug. | Fastly | reported | 1/2 | Fastly oss-security |
## How big it is
| Claim | Who says it | Status | Primary | Sources |
| Roughly 70% of the Internet is affectedThe BBC was 'unable to independently verify that figure'. Wiz's body text says 70% of websites and cites no measurement. | Wiz (headline, X post); BBC attributing Wiz | unverified | 2/3 | Wiz Wiz on X BBC News |
| PHP is used by almost 70% of websitesNone of the three cites the survey it comes from. A share of websites using PHP is an upper bound on exposure, not a count of vulnerable systems. | Cloudflare; OpenAI ('an estimated 70%'); Wiz body text | reported | 3/3 | Cloudflare OpenAI on X Wiz |
| Something like 30 million websites could be affectedNo basis given. | Alan Woodward, via the BBC | reported | 0/1 | BBC News |
| PHP is exposed on 2,608,039about 2.6 million internet-facing hosts, of which Censys counted 1.57 million unpatched on 21 OctoberCensys: 2.58 million hosts seen, 1.58 million reporting a version, 1.57 million not patched; nearly 3 million by 22 October. VirusTotal: 5.1 million IPs running PHP, 1.1 million announcing a version. Unit 42: 22.6 million systems that 'could be vulnerable' (via Insurance Business). Censys's own post was not found. | VulnCheck,VulnCheck and Censys, via The Hacker News and SecurityWeek | reported | 0/2 | THN SecurityWeek |
| About 6,000 potentially affected resources in Latvia, a few hundred in the public sectorPrimary source, one country, says 'potentially'. | CERT.LV | reported | 1/1 | CERT.LV |
| 674 products in the NCSC-NL inventory: 206 vulnerable, 46 fixed, 418 under investigation, 3 not vulnerableCounted, not quoted. NCSC-NL calls unbacked entries 'investigation leads'. | NCSC-NL, counted by this site from the file at commit cca173c64ec5 | confirmed | 1/1 | NCSC-NL |
## Who found it, and how
| Claim | Who says it | Status | Sources |
|---|---|---|---|
| The flaws were found by researchers using frontier AI under OpenAI's Patch the Planet initiativeAll three research parties say AI was used. Calif: 'No special harness, or access to models that weren't generally available to everyone were used'. Calif does not name a model; Wiz names Gemini 4 Argon, GPT-5.6 Sol and Wiz Atlas; OpenAI's blog reportedly names GPT-5.6 Sol but is blocked. | BBC; OpenAI; Calif; Wiz | reported | BBC News OpenAI on X Calif Wiz |
| Calif found the flaws first: discovery 1 August, hash commitment 5 August, report to PHP 11 AugustThe hash tweet is dated 5 August 2026 on X; its pre-image has not been published, so what it commits to cannot be checked. | Calif; PHP Foundation (report date) | confirmed | Calif Ryan Austin , Calif on X PHP Foundation |
| OpenAI independently reported the same root cause on 11 August, with further vectors on 18 SeptemberThe GitHub advisories credit amyb-oai among four reporters. OpenAI's own post credits Calif's discovery 'using GPT-5.6 Sol' and Wiz; an X Community Note disputes OpenAI's role. | PHP Foundation | reported | PHP Foundation PHP |
| Wiz Research independently discovered the first flaw on 19 August and reported on 24 AugustWiz's X post says 'Wiz Research uncovers' with no credit to Calif or OpenAI; the blog thanks both. | Wiz; PHP Foundation (24 August) | reported | Wiz PHP Foundation |
| The GitHub advisories credit four reporters: lcfr-hax (Calif), sagitzadik-wiz (Wiz), amyb-oai (OpenAI) and tomash-areiontomash-areion is not named in the PHP Foundation's thanks and appears nowhere else on this beat. | GitHub security advisories | confirmed | PHP PHP Daubois |
| The out-of-memory issue was found in a 2024 audit by Quarkslab (funded through OSTIF and the Sovereign Tech Agency) but exploitation was not proven, so it was not fixedTwo parties agree. The Foundation calls the delay 'a structural failure'. Cloudflare lists Quarkslab among the 2026 disclosers; nobody else does. | PHP Foundation; Calif | confirmed | PHP Foundation Calif |
| Frontier AI found the flaw ahead of attackers, giving defenders time to prepareAmazon reports an exploit attempt against a honeypot on 17 October, four days before disclosure, from an actor whose source of exploit information is unknown. | OpenAI | disputed | OpenAI on X THN |
| The most severe flaws ever detected by AIWiz's own wording is 'among the most severe vulnerabilities discovered in PHP, and arguably in software history'. OpenAI: 'one of the most impactful vulnerabilities in recent memory'. | BBC attributing Wiz | reported | BBC News Wiz |
| Claim | Who says it | Status | Primary | Sources |
|---|---|---|---|---|
| The flaws were found by researchers using frontier AI under OpenAI's Patch the Planet initiativeAll three research parties say AI was used. Calif: 'No special harness, or access to models that weren't generally available to everyone were used'. Calif does not name a model; Wiz names Gemini 4 Argon, GPT-5.6 Sol and Wiz Atlas; OpenAI's blog reportedly names GPT-5.6 Sol but is blocked. | BBC; OpenAI; Calif; Wiz | reported | 3/4 | BBC News OpenAI on X Calif Wiz |
| Calif found the flaws first: discovery 1 August, hash commitment 5 August, report to PHP 11 AugustThe hash tweet is dated 5 August 2026 on X; its pre-image has not been published, so what it commits to cannot be checked. | Calif; PHP Foundation (report date) | confirmed | 3/3 | Calif Ryan Austin , Calif on X PHP Foundation |
| OpenAI independently reported the same root cause on 11 August, with further vectors on 18 SeptemberThe GitHub advisories credit amyb-oai among four reporters. OpenAI's own post credits Calif's discovery 'using GPT-5.6 Sol' and Wiz; an X Community Note disputes OpenAI's role. | PHP Foundation | reported | 2/2 | PHP Foundation PHP |
| Wiz Research independently discovered the first flaw on 19 August and reported on 24 AugustWiz's X post says 'Wiz Research uncovers' with no credit to Calif or OpenAI; the blog thanks both. | Wiz; PHP Foundation (24 August) | reported | 2/2 | Wiz PHP Foundation |
| The GitHub advisories credit four reporters: lcfr-hax (Calif), sagitzadik-wiz (Wiz), amyb-oai (OpenAI) and tomash-areiontomash-areion is not named in the PHP Foundation's thanks and appears nowhere else on this beat. | GitHub security advisories | confirmed | 2/3 | PHP PHP Daubois |
| The out-of-memory issue was found in a 2024 audit by Quarkslab (funded through OSTIF and the Sovereign Tech Agency) but exploitation was not proven, so it was not fixedTwo parties agree. The Foundation calls the delay 'a structural failure'. Cloudflare lists Quarkslab among the 2026 disclosers; nobody else does. | PHP Foundation; Calif | confirmed | 2/2 | PHP Foundation Calif |
| Frontier AI found the flaw ahead of attackers, giving defenders time to prepareAmazon reports an exploit attempt against a honeypot on 17 October, four days before disclosure, from an actor whose source of exploit information is unknown. | OpenAI | disputed | 1/2 | OpenAI on X THN |
| The most severe flaws ever detected by AIWiz's own wording is 'among the most severe vulnerabilities discovered in PHP, and arguably in software history'. OpenAI: 'one of the most impactful vulnerabilities in recent memory'. | BBC attributing Wiz | reported | 1/2 | BBC News Wiz |
| Quarkslab's published audit summary lists 27 findings, two redacted because their fixes were complex and in progress; it does not describe an out-of-memory findingThe Foundation says the OOM signs were found while fixing one of the audit's findings, not in the audit report itself. | Quarkslab's blog; a Substack analysis | reported | 1/2 | Quarkslab David Lopez-Kurtz |
| Chainguard's team found the same bugs independently with an AI harness and a frontier model after a researcher warned them on the Friday beforeUnverified by anyone else. | Dan Lorenc, via The Register | reported | 0/1 | The Register |
## The leak
| Claim | Who says it | Status | Primary | Sources |
| On 20 October at about 15:00 UTC the two CVE IDs began circulating on forums and social media with a wrong release time and a wrong CVSS score; no technical details leakedPrimary party. The Foundation does not say who or where. | PHP Foundation | reported | 2/2 | PHP Foundation PHP Foundation |
| The leak started with an anonymous Hacker News post citing a reliable source, which came down after screenshots spread; a screenshot of the 'PHP2Shell tool' credited to Calif.io and a short exploitation video also went up and came downContradicts the Foundation's 'no technical details leaked' and The Hacker News's 'a proof-of-concept exploit leaked'. No copy of the post, screenshot or video is in the vault. | Alexandre Daubois (PHP security team, personal blog) | reported | 0/1 | Daubois |
| watchTowr confirmed in public that the bugs were real and posted both CVE numbers before the release | Daubois; CERT-EU lists a watchTowr X post among public reports | reported | 1/2 | Daubois CERT-EU |
| Calif mistakenly published a video around 20:00 UTC on 20 October showing its proof of concept against a number of targets; copies circulated and 'contributed to accelerated development of various PoCs'Calif's own page does not mention a leak or a deleted video; it embeds two demo videos. Whether one of them is the deleted video is unknown. | PHP Foundation | reported | 3/4 | PHP Foundation PHP Foundation BBC News Calif |
| Mitigation advice given to a few critical-infrastructure providers from about 23:00 UTC on 20 October may have leaked | PHP Foundation | reported | 1/1 | PHP Foundation |
| Chainguard unilaterally broke the embargo on 21 October at 07:41 UTC by publishing built images containing the fixChainguardfixDan reportedlyLorenc does(via notThe disputeRegister): 'I made the call to get these out early when exploits hit in the wild'; several unnamed vendors had reported exploits; Chainguard's honeypots trapped IPs; a researcher warned the company on the Friday and its team then found the bugs independently with an AI harness. No evidence published. The PHP security team found no functional exploit by release time. | PHP Foundation; Chainguard's CEO accepts the time butand denies leaking (Techzine,| blockeddisputed by| a bot challenge; snippet only).1/3 | PHP Foundation |The disputedRegister Feross Aboukhadijeh on X on X | PHP Foundation Techzine |
| The release moved forward from 22 October 14:00 UTC to 21 October 14:00 UTC because of the leakThe php.net ChangeLog still dates all four releases 22 October. Wiz's X thread still says 22 October. | PHP Foundation; php.net pre-announcement; Wiz thread ('Apply the Oct 22 security release') | confirmed | 4/4 | PHP Foundation oss-security Wiz on X php.net |
## When things happened
| Claim | Who says it | Status | Sources |
|---|---|---|---|
| The flaws were disclosed on 22 October 2026Primary sources put the release at 21 October: GHSAs 13:34Z, tags 13:35Z, CVE records 13:48Z and 13:54Z, GitHub release 14:06Z. | BBC framing (UK morning coverage) | contradicted | BBC News php.net php-src |
| The fixes were released at 14:00 UTC on 21 OctoberCERT-EU says 13:30 UTC; the tags and advisories are stamped 13:34 to 13:35 UTC; the GitHub release 14:06 UTC; the php.net feed entries carry 00:05 to 00:35 UTC, which are authoring times, not publication times. | php.net pre-announcement; Daubois; CERT-FR (16:00 Paris) | disputed | oss-security Daubois CERT-FR CERT-EU php-src PHP php-src php.net |
| The pre-announcement was published at 19:30 UTC on 20 OctoberThe php.net feed says 20:32 UTC; oss-security relayed it at 20:22:51 UTC, so it was public by then. | PHP Foundation | disputed | PHP Foundation oss-security php.net |
| Claim | Who says it | Status | Primary | Sources |
|---|---|---|---|---|
| The flaws were disclosed on 22 October 2026Primary sources put the release at 21 October: GHSAs 13:34Z, tags 13:35Z, CVE records 13:48Z and 13:54Z, GitHub release 14:06Z. | BBC framing (UK morning coverage) | contradicted | 2/3 | BBC News php.net php-src |
| The fixes were released at 14:00 UTC on 21 OctoberCERT-EU says 13:30 UTC; the tags and advisories are stamped 13:34 to 13:35 UTC; the GitHub release 14:06 UTC; the php.net feed entries carry 00:05 to 00:35 UTC, which are authoring times, not publication times. | php.net pre-announcement; Daubois; CERT-FR (16:00 Paris) | disputed | 7/8 | oss-security Daubois CERT-FR CERT-EU php-src PHP php-src php.net |
| The pre-announcement was published at 19:30 UTC on 20 OctoberThe php.net feed says 20:32 UTC; oss-security relayed it at 20:22:51 UTC, so it was public by then. | PHP Foundation | disputed | 3/3 | PHP Foundation oss-security php.net |
| The fix was authored on 18 October at 15:26 UTC and entered the public branches at 14:06 UTC on 21 October, with merges into 8.3, 8.4 and 8.5 between 14:12 and 14:30 UTCCounted from the repository, not from a page. Five authors; 389 files; 10,689 insertions. | php/php-src commit 3584a98bd, read from a clone | confirmed | 2/2 | php/php-src , read from a clone php-src |
## Exploitation
| Claim | Who says it | Status | Sources |
|---|---|---|---|
| There is no evidence yet that hackers have exploited the flaw | Ryan Austin, Calif, on Radio 4, 08:00 BST 22 October | reported | BBC News |
| CISA has not observed exploitation; neither CVE is in the Known Exploited Vulnerabilities catalogCatalog version 2026.10.21 fetched 2026-10-22T08:15Z, 1,754 entries. A point-in-time negative finding. | CISA | confirmed | CISA CISA CVE record |
| Reports of active exploitation existThe only agency saying so, and it does not say whose reports. | NCSC New Zealand | reported | NCSC New Zealand |
| An exploit attempt hit an Amazon honeypot on 17 October from an anonymisation network, and proof-of-concept attempts started about 02:00 UTC on 21 OctoberAmazon's own post has not been found. | CJ Moses, Amazon, via The Hacker News | reported | THN |
| Cloudflare observed attack traffic targeting its customers after the leak, with attackers mutating payloadsPrimary party, no volumes. | Cloudflare | reported | Cloudflare |
| Amazon and Cloudflare saw sites being probed for the flawSecond-hand, but consistent with what both companies have said themselves. | Alan Woodward, via the BBC | reported | BBC News Cloudflare THN |
| Automated exploitation attempts were seen in Latvia; none succeededPrimary source. | CERT.LV | reported | CERT.LV |
| Criminals are using AI to 'vibe code' an attack method | unnamed researchers, via the BBC | unverified | BBC News |
| Claim | Who says it | Status | Primary | Sources |
|---|---|---|---|---|
| There is no evidence yet that hackers have exploited the flaw | Ryan Austin, Calif, on Radio 4, 08:00 BST 22 October | reported | 0/1 | BBC News |
| CISA has not observed exploitation; neither CVE is in the Known Exploited Vulnerabilities catalogCatalog version 2026.10.21 fetched 2026-10-22T08:15Z, 1,754 entries. A point-in-time negative finding. | CISA | confirmed | 3/3 | CISA CISA CVE record |
| Reports of active exploitation existThe only agency saying so, and it does not say whose reports. | NCSC New Zealand | reported | 1/1 | NCSC New Zealand |
| An exploit attempt hit an Amazon honeypot on 17 October from an anonymisation network; proof-of-concept attempts began about 02:00 UTC on 21 October from multiple actors; after release 'PHP2Shell is now being broadly exploited in the wild'Primary party. Amazon adds: 'it's unclear if any of these attempts would have succeeded in real-world systems'. Attempts against honeypots, not compromises of victims. | Amazon (CJ Moses, AWS Security Blog) | reported | 1/2 | Amazon THN |
| Cloudflare observed attack traffic targeting its customers after the leak, with attackers mutating payloadsPrimary party, no volumes. | Cloudflare | reported | 1/1 | Cloudflare |
| Amazon and Cloudflare saw sites being probed for the flawBoth companies have since said so themselves. | Alan Woodward, via the BBC; confirmed by both companies' own posts | confirmed | 2/3 | BBC News Cloudflare Amazon |
| Automated exploitation attempts were seen in Latvia; none succeededPrimary source. | CERT.LV | reported | 1/1 | CERT.LV |
| Criminals are using AI to 'vibe code' an attack method | unnamed researchers, via the BBC | unverified | 0/1 | BBC News |
| Exploit attempts across Cloudflare's network: thousands in the ten hours before announcement, tens of thousands within 45 minutes after, hundreds of thousands within two hours, millions by 22 October 01:25 UTCPrimary party. Attempts, not compromises; no blocked count; 1.4 million views at capture. | Matthew Prince, Cloudflare CEO, on X | reported | 1/1 | Matthew Prince , Cloudflare CEO on |
| No traffic matching the php2shell exploit patterns was seen during Imperva's pre-disclosure monitoringA negative finding from a party that had the details under embargo. | Imperva Threat Research | reported | 1/1 | Imperva Threat Research |
| No exploitation observed on Huntress partner systems as of 20:30 UTC on 21 October; no public exploit code known to Huntress | Huntress | reported | 1/1 | Huntress |
| watchTowr sees active exploitation attempts and lists the flaws as exploited in the wildwatchtowr.com returns HTTP 403 to this site's capture tool; known only from search summaries. | watchTowr | unverified | 2/2 | watchTowr watchTowr |
| The last PHP core RCE, CVE-2024-4577, was exploited in the wild one day after disclosure and in KEV three days after; php2shell is not in KEV after one dayCounted from the captured catalog. | CISA KEV catalog; Akamai (2024) | confirmed | 3/3 | CISA CVE record Akamai Security Research |
## What the agencies advise
| Claim | Who says it | Status | Sources |
|---|---|---|---|
| If an immediate update is not feasible, take the system offline until it can be fully mitigatedX post 13:45:58Z 21 October (10.1 million views at capture) and the press release. | NSA Cybersecurity | confirmed | NSA Cyber on X NSA |
| Organisations that cannot update immediately, or that run PHP 8.1 or older, should take PHP-based systems offline | CISA | confirmed | CISA |
| 'Where immediate remediation is not feasible, organisations should consider taking the system offline until it can be fully mitigated'That sentence is not on the NCSC page as captured at 08:09Z on 22 October. The page's offline advice is step 4 of 6 and is worded differently. The page was modified at 07:30Z that morning. The sentence's opening matches the Canadian CCCS text. | UK NCSC, as quoted by the BBC | disputed | BBC News NCSC UK CCCS |
| The UK's NCSC, the NSA and their counterparts in the EU and Australia advise taking systems offline where patching is not feasibleAustralia's ACSC gives no offline advice. CERT-EU says isolate. The Netherlands, Italy, Japan and New Zealand give no offline advice. | BBC | contradicted | BBC News ACSC CERT-EU NCSC-NL ACN / CSIRT Italia JPCERT/CC |
| The risks require immediate patching across United States Government departments and agenciesNo CISA emergency directive was visible on the CISA home page at capture. | NSA | reported | NSA CISA |
| Claim | Who says it | Status | Primary | Sources |
|---|---|---|---|---|
| If an immediate update is not feasible, take the system offline until it can be fully mitigatedX post 13:45:58Z 21 October (10.1 million views at capture) and the press release. | NSA Cybersecurity | confirmed | 2/2 | NSA Cyber on X NSA |
| Organisations that cannot update immediately, or that run PHP 8.1 or older, should take PHP-based systems offline | CISA | confirmed | 1/1 | CISA |
| 'Where immediate remediation is not feasible, organisations should consider taking the system offline until it can be fully mitigated'That sentence is not on the NCSC page as captured at 08:09Z on 22 October. The page's offline advice is step 4 of 6 and is worded differently. The page was modified at 07:30Z that morning. The sentence's opening matches the Canadian CCCS text. | UK NCSC, as quoted by the BBC | disputed | 2/3 | BBC News NCSC UK CCCS |
| The UK's NCSC, the NSA and their counterparts in the EU and Australia advise taking systems offline where patching is not feasibleAustralia's ACSC gives no offline advice. CERT-EU says isolate. The Netherlands, Italy, Japan and New Zealand give no offline advice. | BBC | contradicted | 4/6 | BBC News ACSC CERT-EU NCSC-NL ACN / CSIRT Italia JPCERT/CC |
| The risks require immediate patching across United States Government departments and agenciesNo CISA emergency directive was visible on the CISA home page at capture. | NSA | reported | 1/2 | NSA CISA |
| Edge protections went live hours before disclosure: Cloudflare at 03:02 UTC; Imperva, Akamai and Fastly on 21 October; Fortinet signatures by 22 OctoberEvery vendor says the same two things: it is a stopgap, and patch anyway. | the vendors | confirmed | 5/5 | Cloudflare Imperva Threat Research Akamai Security Research Fastly Fortinet Community |
## What was taken offline
| Claim | Who says it | Status | Sources |
|---|---|---|---|
| Parts of Wikipedia, Edinburgh council, French government sites, the University of Geneva, online shops and the BBC were affected or taken offlineNot captured from any of the named organisations. | BBC | reported | BBC News |
| Latvia restricted access from abroad to several state digital resources, possibly until 26 October; lsm.lv and 112.lv were restored by 20:00 UTCThe one documented case of government services being pulled from the public internet, from the agency itself. | CERT.LV | confirmed | CERT.LV |
| Claim | Who says it | Status | Primary | Sources |
|---|---|---|---|---|
| Parts of Wikipedia, Edinburgh council, French government sites, the University of Geneva, online shops and the BBC were affected or taken offlineNot captured from any of the named organisations. | BBC | reported | 0/1 | BBC News |
| Latvia restricted access from abroad to several state digital resources, possibly until 26 October; lsm.lv and 112.lv were restored by 20:00 UTCThe one documented case of government services being pulled from the public internet, from the agency itself. | CERT.LV | confirmed | 1/1 | CERT.LV |
| No named organisation has confirmed a compromise through php2shellA negative finding as of the latest capture. Amazon says 'broadly exploited' against sensors; Weird Gloop expects old forums to have been hit; CISA has not listed either CVE. | this site, from every captured source | confirmed | 5/5 | CISA Huntress Imperva Threat Research Amazon Weird Gloop |
| The Dutch NCSC took its own site offline as a precaution, as did DigiD, MijnOverheid and Overheid.nl, with no signs of active exploitation of those servicesPrimary statement. | the Dutch government | confirmed | 1/2 (1 blocked) | Rijksoverheid / NCSC-NL Dutch IT Leaders |
| Finland's state IT provider Valtori restricted public traffic to government web services from 12:45 local time on 21 October as a precaution | Yle; Helsinki Times, quoting Valtori | reported | 0/2 | Yle Helsinki Times |
| The Wikimedia Foundation took down a number of systems 'as a precautionary measure until they can be safely patched'No Wikimedia-published statement captured. | the Foundation, as quoted by CNN and The Cyber Express | reported | 0/2 | CNN The Cyber Express |
| Weird Gloop turned off its wiki web servers for 13 hours and still served about 94% of page views from cachePrimary, and the one outage with a measured cost. | Weird Gloop | confirmed | 1/1 | Weird Gloop |
| Edinburgh council's site went offline late on 21 October; the council called it 'essential maintenance' and did not confirm a link | The Scotsman quoting the council | reported | 0/1 | The Scotsman |
| Oxford City Council: 'a precaution because of a worldwide issue with the underlying technology and is not a cyber incident' | the council's social post, via Oxford Chronicle | reported | 0/1 | Oxford Chronicle |
| Edinburgh and Oxford councils, the Met Police and the Office for Budget Responsibility were unavailable; Bristol, Lambeth and Barnet council sites showed errors | LBC; Insurance Business | reported | 0/2 | LBC Insurance Business |
The newsroom's own twelve claims, seeded from the BBC live page on the morning of 22 October, are in the vault as `claims/claude-newsroom-lead.json` and are superseded by the rows above, which trace each of them to primary sources. The raw rows are in data/claims.json.
v1 · site v0.1.0 · 22 October 2026 · reconstructed from git · the first version · dc82de9af351
# Every claim, with its status and sources
49 claims about php2shell, each with who makes it, a status (confirmed, reported, disputed, contradicted or unverified) and the captured sources behind it.
# Every claim, and who makes it
49 claims: 13 confirmed, 22 reported, 8 disputed, 3 contradicted, 3 unverified. A claim is a sentence somebody said, with the party that said it, the captured sources it comes from, and one of five words for how far it can be trusted. The words are defined here, once, and the build refuses a claim whose sources are not in the manifest.
- confirmed two or more primary sources agree, or the fact was counted from a captured file
- reported one party says so, and it has not been contradicted
- disputed the sources disagree, and both readings are shown
- contradicted a primary source says otherwise
- unverified even the reporting outlet could not check it
## The flaws themselves
| Claim | Who says it | Status | Sources |
|---|---|---|---|
| Two critical vulnerabilities, CVE-2026-109618 and CVE-2026-109619, each CVSS v4.0 9.2, fixed in PHP 8.5.12, 8.4.27, 8.3.36 and 8.2.35 | PHP Group (CNA), GitHub advisories, php.net | confirmed | CVE record CVE record PHP PHP php.net |
| The flaws are CVSS 10.0The PHP Foundation: 'a wrong CVSS score of 10.0 (the actual score is 9.2)'. Daubois traces it to a social post relayed by Phoenix Security and to watchTowr via Cyber Daily. | social posts on 20 October, relayed by a vendor and a news site | contradicted | PHP Foundation Daubois |
| Unauthenticated RCE over HTTP against Apache mod_php with default settings, before any application code runs | PHP security team (GHSA, oss-security), php.net | confirmed | PHP oss-security php.net |
| Remote code execution is confirmed on PHP-FPMGHSA-w8hw (CVE-2026-109618): 'no complete FPM exploit has been demonstrated for this SAPI'. The Foundation blog: RCE 'was also confirmed on PHP-FPM through application-level code paths'. GHSA-6wmf (CVE-2026-109619): session lifecycle RCE 'validated against mod_php and FPM'. The accounts may refer to different CVEs. | PHP Foundation blog; GHSA-6wmf for the session path | disputed | PHP Foundation PHP PHP oss-security |
| The fix removes longjmp() for out-of-memory errors in favour of a delayed soft OOM at the next VM safe point and a hard OOM via _exit(); the changelog line is 'Avoid state corruption via bailout' | PHP security team | confirmed | PHP php.net php-src |
| The 8.5.12 fix may be incomplete, or there is a third, different bugPer a Matrix channel, Canonical asked PHP and 'was told that it's unrelated and not a real issue'. Second-hand. Nothing from PHP on the list at capture. | Fediverse posts relayed to oss-security by Aaron Rainbolt and Yves-Alexis Perez | unverified | oss-security |
| All PHP versions from 5 onwards are affected by at least one of the flawsThe CVE records list only 8.2 to 8.5 with defaultStatus 'unaffected'. php.net published source backports for 7.4, 8.0 and 8.1, which implies they are affected. A scanner that trusts the CVE record will miss 7.4 to 8.1. | NCSC-NL; Wiz ('>= 5.4'); CERT-FR (5.x, 6.x, 7.x, 8.0, 8.1) | disputed | NCSC-NL Wiz on X CERT-FR oss-security |
| Updating is the only complete mitigation; the configuration measures reduce exposure to specific paths and do not make an installation safe | php.net; PHP security team | confirmed | php.net oss-security PHP |
| A web application firewall may provide some protection until systems are patchedSwiss BACS: 'Even a web application firewall alone is not sufficient.' Cloudflare says its rules blocked the traffic it saw and that attackers mutated payloads to get past them. | CISA | disputed | CISA BACS Cloudflare |
| Pre-authentication RCE was confirmed against WordPress, Drupal, Joomla, MediaWiki, Roundcube, Magento, phpMyAdmin, Nextcloud, Laravel, Symfony and WHMCSTwo researcher parties, no third-party reproduction in the vault. The demo videos were not downloaded. | Calif; Wiz for WordPress and Drupal | reported | Calif Wiz |
## How big it is
| Claim | Who says it | Status | Sources |
|---|---|---|---|
| Roughly 70% of the Internet is affectedThe BBC was 'unable to independently verify that figure'. Wiz's body text says 70% of websites and cites no measurement. | Wiz (headline, X post); BBC attributing Wiz | unverified | Wiz Wiz on X BBC News |
| PHP is used by almost 70% of websitesNone of the three cites the survey it comes from. A share of websites using PHP is an upper bound on exposure, not a count of vulnerable systems. | Cloudflare; OpenAI ('an estimated 70%'); Wiz body text | reported | Cloudflare OpenAI on X Wiz |
| Something like 30 million websites could be affectedNo basis given. | Alan Woodward, via the BBC | reported | BBC News |
| PHP is exposed on 2,608,039 internet-facing hosts | VulnCheck, via The Hacker News | reported | THN |
| About 6,000 potentially affected resources in Latvia, a few hundred in the public sectorPrimary source, one country, says 'potentially'. | CERT.LV | reported | CERT.LV |
| 674 products in the NCSC-NL inventory: 206 vulnerable, 46 fixed, 418 under investigation, 3 not vulnerableCounted, not quoted. NCSC-NL calls unbacked entries 'investigation leads'. | NCSC-NL, counted by this site from the file at commit cca173c64ec5 | confirmed | NCSC-NL |
## Who found it, and how
| Claim | Who says it | Status | Sources |
|---|---|---|---|
| The flaws were found by researchers using frontier AI under OpenAI's Patch the Planet initiativeAll three research parties say AI was used. Calif: 'No special harness, or access to models that weren't generally available to everyone were used'. Calif does not name a model; Wiz names Gemini 4 Argon, GPT-5.6 Sol and Wiz Atlas; OpenAI's blog reportedly names GPT-5.6 Sol but is blocked. | BBC; OpenAI; Calif; Wiz | reported | BBC News OpenAI on X Calif Wiz |
| Calif found the flaws first: discovery 1 August, hash commitment 5 August, report to PHP 11 AugustThe hash tweet is dated 5 August 2026 on X; its pre-image has not been published, so what it commits to cannot be checked. | Calif; PHP Foundation (report date) | confirmed | Calif Ryan Austin , Calif on X PHP Foundation |
| OpenAI independently reported the same root cause on 11 August, with further vectors on 18 SeptemberThe GitHub advisories credit amyb-oai among four reporters. OpenAI's own post credits Calif's discovery 'using GPT-5.6 Sol' and Wiz; an X Community Note disputes OpenAI's role. | PHP Foundation | reported | PHP Foundation PHP |
| Wiz Research independently discovered the first flaw on 19 August and reported on 24 AugustWiz's X post says 'Wiz Research uncovers' with no credit to Calif or OpenAI; the blog thanks both. | Wiz; PHP Foundation (24 August) | reported | Wiz PHP Foundation |
| The GitHub advisories credit four reporters: lcfr-hax (Calif), sagitzadik-wiz (Wiz), amyb-oai (OpenAI) and tomash-areiontomash-areion is not named in the PHP Foundation's thanks and appears nowhere else on this beat. | GitHub security advisories | confirmed | PHP PHP Daubois |
| The out-of-memory issue was found in a 2024 audit by Quarkslab (funded through OSTIF and the Sovereign Tech Agency) but exploitation was not proven, so it was not fixedTwo parties agree. The Foundation calls the delay 'a structural failure'. Cloudflare lists Quarkslab among the 2026 disclosers; nobody else does. | PHP Foundation; Calif | confirmed | PHP Foundation Calif |
| Frontier AI found the flaw ahead of attackers, giving defenders time to prepareAmazon reports an exploit attempt against a honeypot on 17 October, four days before disclosure, from an actor whose source of exploit information is unknown. | OpenAI | disputed | OpenAI on X THN |
| The most severe flaws ever detected by AIWiz's own wording is 'among the most severe vulnerabilities discovered in PHP, and arguably in software history'. OpenAI: 'one of the most impactful vulnerabilities in recent memory'. | BBC attributing Wiz | reported | BBC News Wiz |
## The leak
| Claim | Who says it | Status | Sources |
|---|---|---|---|
| On 20 October at about 15:00 UTC the two CVE IDs began circulating on forums and social media with a wrong release time and a wrong CVSS score; no technical details leakedPrimary party. The Foundation does not say who or where. | PHP Foundation | reported | PHP Foundation PHP Foundation |
| The leak started with an anonymous Hacker News post citing a reliable source, which came down after screenshots spread; a screenshot of the 'PHP2Shell tool' credited to Calif.io and a short exploitation video also went up and came downContradicts the Foundation's 'no technical details leaked' and The Hacker News's 'a proof-of-concept exploit leaked'. No copy of the post, screenshot or video is in the vault. | Alexandre Daubois (PHP security team, personal blog) | reported | Daubois |
| watchTowr confirmed in public that the bugs were real and posted both CVE numbers before the release | Daubois; CERT-EU lists a watchTowr X post among public reports | reported | Daubois CERT-EU |
| Calif mistakenly published a video around 20:00 UTC on 20 October showing its proof of concept against a number of targets; copies circulated and 'contributed to accelerated development of various PoCs'Calif's own page does not mention a leak or a deleted video; it embeds two demo videos. Whether one of them is the deleted video is unknown. | PHP Foundation | reported | PHP Foundation PHP Foundation BBC News Calif |
| Mitigation advice given to a few critical-infrastructure providers from about 23:00 UTC on 20 October may have leaked | PHP Foundation | reported | PHP Foundation |
| Chainguard unilaterally broke the embargo on 21 October at 07:41 UTC by publishing built images containing the fixChainguard reportedly does not dispute the time but denies leaking (Techzine, blocked by a bot challenge; snippet only). | PHP Foundation | disputed | PHP Foundation Techzine |
| The release moved forward from 22 October 14:00 UTC to 21 October 14:00 UTC because of the leakThe php.net ChangeLog still dates all four releases 22 October. Wiz's X thread still says 22 October. | PHP Foundation; php.net pre-announcement; Wiz thread ('Apply the Oct 22 security release') | confirmed | PHP Foundation oss-security Wiz on X php.net |
## When things happened
| Claim | Who says it | Status | Sources |
|---|---|---|---|
| The flaws were disclosed on 22 October 2026Primary sources put the release at 21 October: GHSAs 13:34Z, tags 13:35Z, CVE records 13:48Z and 13:54Z, GitHub release 14:06Z. | BBC framing (UK morning coverage) | contradicted | BBC News php.net php-src |
| The fixes were released at 14:00 UTC on 21 OctoberCERT-EU says 13:30 UTC; the tags and advisories are stamped 13:34 to 13:35 UTC; the GitHub release 14:06 UTC; the php.net feed entries carry 00:05 to 00:35 UTC, which are authoring times, not publication times. | php.net pre-announcement; Daubois; CERT-FR (16:00 Paris) | disputed | oss-security Daubois CERT-FR CERT-EU php-src PHP php-src php.net |
| The pre-announcement was published at 19:30 UTC on 20 OctoberThe php.net feed says 20:32 UTC; oss-security relayed it at 20:22:51 UTC, so it was public by then. | PHP Foundation | disputed | PHP Foundation oss-security php.net |
## Exploitation
| Claim | Who says it | Status | Sources |
|---|---|---|---|
| There is no evidence yet that hackers have exploited the flaw | Ryan Austin, Calif, on Radio 4, 08:00 BST 22 October | reported | BBC News |
| CISA has not observed exploitation; neither CVE is in the Known Exploited Vulnerabilities catalogCatalog version 2026.10.21 fetched 2026-10-22T08:15Z, 1,754 entries. A point-in-time negative finding. | CISA | confirmed | CISA CISA CVE record |
| Reports of active exploitation existThe only agency saying so, and it does not say whose reports. | NCSC New Zealand | reported | NCSC New Zealand |
| An exploit attempt hit an Amazon honeypot on 17 October from an anonymisation network, and proof-of-concept attempts started about 02:00 UTC on 21 OctoberAmazon's own post has not been found. | CJ Moses, Amazon, via The Hacker News | reported | THN |
| Cloudflare observed attack traffic targeting its customers after the leak, with attackers mutating payloadsPrimary party, no volumes. | Cloudflare | reported | Cloudflare |
| Amazon and Cloudflare saw sites being probed for the flawSecond-hand, but consistent with what both companies have said themselves. | Alan Woodward, via the BBC | reported | BBC News Cloudflare THN |
| Automated exploitation attempts were seen in Latvia; none succeededPrimary source. | CERT.LV | reported | CERT.LV |
| Criminals are using AI to 'vibe code' an attack method | unnamed researchers, via the BBC | unverified | BBC News |
## What the agencies advise
| Claim | Who says it | Status | Sources |
|---|---|---|---|
| If an immediate update is not feasible, take the system offline until it can be fully mitigatedX post 13:45:58Z 21 October (10.1 million views at capture) and the press release. | NSA Cybersecurity | confirmed | NSA Cyber on X NSA |
| Organisations that cannot update immediately, or that run PHP 8.1 or older, should take PHP-based systems offline | CISA | confirmed | CISA |
| 'Where immediate remediation is not feasible, organisations should consider taking the system offline until it can be fully mitigated'That sentence is not on the NCSC page as captured at 08:09Z on 22 October. The page's offline advice is step 4 of 6 and is worded differently. The page was modified at 07:30Z that morning. The sentence's opening matches the Canadian CCCS text. | UK NCSC, as quoted by the BBC | disputed | BBC News NCSC UK CCCS |
| The UK's NCSC, the NSA and their counterparts in the EU and Australia advise taking systems offline where patching is not feasibleAustralia's ACSC gives no offline advice. CERT-EU says isolate. The Netherlands, Italy, Japan and New Zealand give no offline advice. | BBC | contradicted | BBC News ACSC CERT-EU NCSC-NL ACN / CSIRT Italia JPCERT/CC |
| The risks require immediate patching across United States Government departments and agenciesNo CISA emergency directive was visible on the CISA home page at capture. | NSA | reported | NSA CISA |
## What was taken offline
| Claim | Who says it | Status | Sources |
|---|---|---|---|
| Parts of Wikipedia, Edinburgh council, French government sites, the University of Geneva, online shops and the BBC were affected or taken offlineNot captured from any of the named organisations. | BBC | reported | BBC News |
| Latvia restricted access from abroad to several state digital resources, possibly until 26 October; lsm.lv and 112.lv were restored by 20:00 UTCThe one documented case of government services being pulled from the public internet, from the agency itself. | CERT.LV | confirmed | CERT.LV |
The newsroom's own twelve claims, seeded from the BBC live page on the morning of 22 October, are in the vault as `claims/claude-newsroom-lead.json` and are superseded by the rows above, which trace each of them to primary sources. The raw rows are in data/claims.json.Every section, across every release →