{"id":"CVE-2026-109619","published":"2026-10-21T14:17:09Z","modified":"2026-10-30T19:18:07Z","title":"PHP Stale Internal Request-State Vulnerability","vendor":"PHP Group","product":"PHP","tier":"core","eol":null,"description":{"text":"PHP has various global state that temporarily points into request memory. In some scenarios, global state may not be correctly reset, or may be repopulated after being reset. The global state may then refer to request memory even after it has been freed. Subsequent requests may read or branch on this stale state before it is fully initialized. Multiple strategies can trigger this condition and produce remote code execution (RCE).","provenance":"source","from":"NVD"},"summary":{"text":"The flaw is in PHP's global internal state, which can temporarily point into request memory and may not be correctly reset or may be repopulated after being reset, so it can refer to freed memory and be read or branched on by subsequent requests before it is fully initialized.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-29T07:10:58Z"},"cvss":{"score":8.1,"severity":"HIGH","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","provenance":"source","from":"NVD"},"epss":{"score":0.99999,"percentile":0.99999,"date":"2026-10-30","provenance":"source"},"kev":{"dateAdded":"2026-10-26","dueDate":"2026-10-29","ransomware":false,"requiredAction":"Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.","notes":"This vulnerability affects an open-source component, third-party library, protocol, or proprietary implementation that could be used by different products. For more information, please see: https://www.php.net/ ; https://www.cisa.gov/news-events/alerts/2026/10/21/critical-vulnerabilities-php-require-immediate-patching ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ;  https://nvd.nist.gov/vuln/detail/CVE-2026-109619","provenance":"source"},"vulncheckKev":{"dateAdded":"2026-10-21","exploitedFirstSeen":"2026-10-21","ransomware":false,"evidence":[{"url":"https://aws.amazon.com/blogs/security/amazon-threat-intelligence-identifies-php2shell-exploitation-prior-to-public-disclosure-in-madpot/","date":"2026-10-21"},{"url":"https://watchtowr.com/intelligence/php-remote-code-execution-php2shell/","date":"2026-10-21"},{"url":"https://www.fastly.com/blog/fastlys-proactive-protection-critical-php-rce-cve-2026-109618","date":"2026-10-21"},{"url":"https://www.sophos.com/en-us/blog/proof-of-concept-exploit-released-for-php-vulnerabilities-109618-109619","date":"2026-10-21"},{"url":"https://arcticwolf.com/resources/blog/php2shell-critical-php-vulnerabilities-enable-unauthenticated-remote-code-execution/","date":"2026-10-22"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2026-10-22&host_type=src&vulnerability=cve-2026-109619","date":"2026-10-22"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2026-10-23&host_type=src&vulnerability=cve-2026-109619","date":"2026-10-23"},{"url":"https://x.com/klrgrz/status/2113780927952236580","date":"2026-10-23"},{"url":"https://www.cyfirma.com/research/cyfirma-threat-advisory-suspected-dprk-campaign-staging-php2shell-targeting-against-global-php-infrastructure/","date":"2026-10-24"},{"url":"https://dreamgroup.com/blog/chained-php2shell-exploit-roots-25-servers","date":"2026-10-26"}],"evidenceTotal":13,"provenance":"source"},"exploited":true,"otx":{"pulseCount":50,"pulses":[{"name":"CVE’s","url":"https://otx.alienvault.com/pulse/6ae57326978de23b4b78ad3c","created":"2026-10-31"},{"name":"A 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