No VulnCrest analysis published for this CVE yet. Below is the original CNA/NVD description, unmodified.
Description
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).
Exploits & detection
Exploitikow/php2shell-poc · github · ★ 1939 · discovered
Unreviewed third-party code. Fake PoCs often contain malware — read the code before running it.
Exploiteness/php2shell-CVE-2026-109618-CVE-2026-109619-PoC · github · ★ 1070 · discovered
Unreviewed third-party code. Fake PoCs often contain malware — read the code before running it.
Exploitassetnote/php2shell-scanner · github · ★ 985 · discovered
Unreviewed third-party code. Fake PoCs often contain malware — read the code before running it.
Exploitdevploit/php2shell · github · ★ 284 · discovered
Unreviewed third-party code. Fake PoCs often contain malware — read the code before running it.
Exploitsyrex1013/php2shell · github · ★ 152 · discovered
Unreviewed third-party code. Fake PoCs often contain malware — read the code before running it.
Exploitaarsaputra/php2shell · github · ★ 135 · discovered
Unreviewed third-party code. Fake PoCs often contain malware — read the code before running it.
Exploitmpyw/php-eol-CVE-2026-109618-109619 · github · ★ 75 · discovered
Unreviewed third-party code. Fake PoCs often contain malware — read the code before running it.
ExploitIs4yev/php2shell-poc · github · ★ 63 · discovered
Unreviewed third-party code. Fake PoCs often contain malware — read the code before running it.
Exploitvperetti/php-cve-2026-109618-109619-backports · github · ★ 60 · discovered
Unreviewed third-party code. Fake PoCs often contain malware — read the code before running it.
Exploitxuehuolll/php2shell-CVE-2026-109618-109619 · github · ★ 51 · discovered
Unreviewed third-party code. Fake PoCs often contain malware — read the code before running it.
Exploitgodylockz/CVE-2026-109618-109619 · github · ★ 41 · discovered
Unreviewed third-party code. Fake PoCs often contain malware — read the code before running it.
Exploitunlimit0118/CVE-2026-109619-php2shell-poc · github · ★ 6 · discovered
Unreviewed third-party code. Fake PoCs often contain malware — read the code before running it.
Exploitcozybear-dev/cve-2026-109619 · github · ★ 4 · discovered
Unreviewed third-party code. Fake PoCs often contain malware — read the code before running it.
ExploitEQSTLab/CVE-2026-109619 · github · ★ 2 · discovered
Unreviewed third-party code. Fake PoCs often contain malware — read the code before running it.
ExploitLordX404/php2shell-exploit · github · ★ 2 · discovered
Unreviewed third-party code. Fake PoCs often contain malware — read the code before running it.
Exploitdev-maple/php2shell-CVE-2026-109619 · github · ★ 2 · discovered
Unreviewed third-party code. Fake PoCs often contain malware — read the code before running it.
ExploitDarynOngera/solid-palm-tree · github · ★ 1 · discovered
Unreviewed third-party code. Fake PoCs often contain malware — read the code before running it.
Exploitbaimaobg/php-cve-2026-109619-lab · github · ★ 1 · discovered
Unreviewed third-party code. Fake PoCs often contain malware — read the code before running it.
Exploitfellipgomes/br-php2shell · github · ★ 1 · discovered
Unreviewed third-party code. Fake PoCs often contain malware — read the code before running it.
Exploitinfiniroot/ansible-mitigate-php2shell · github · ★ 1 · discovered
Unreviewed third-party code. Fake PoCs often contain malware — read the code before running it.
Exploitmazdel/php2shell-poc · github · ★ 1 · discovered
Unreviewed third-party code. Fake PoCs often contain malware — read the code before running it.
Exploit1Nightlovel/CVE-2026-109619 · github · ★ 0 · discovered
Unreviewed third-party code. Fake PoCs often contain malware — read the code before running it.
ExploitFarhadHosen101/PHP2Shell-CVE-2026-109619 · github · ★ 0 · discovered
Unreviewed third-party code. Fake PoCs often contain malware — read the code before running it.
ExploitK2uci/PHP2ShellPOC-CVE-2026-109619 · github · ★ 0 · discovered
Unreviewed third-party code. Fake PoCs often contain malware — read the code before running it.
ExploitMorphingYU/CVE-2026-109619 · github · ★ 0 · discovered
Unreviewed third-party code. Fake PoCs often contain malware — read the code before running it.
ExploitPrajjwal-Srivastava/php2shell_scanner · github · ★ 0 · discovered
Unreviewed third-party code. Fake PoCs often contain malware — read the code before running it.
ExploitRuanSerraAzul/CVE-2026-109619-POC · github · ★ 0 · discovered
Unreviewed third-party code. Fake PoCs often contain malware — read the code before running it.
ExploitTaz1920/cve-2026-109619 · github · ★ 0 · discovered
Unreviewed third-party code. Fake PoCs often contain malware — read the code before running it.
ExploitWallcroftUK/CVE-2026-109619 · github · ★ 0 · discovered
Unreviewed third-party code. Fake PoCs often contain malware — read the code before running it.
Exploitabraxas/php-stale-global-uaf · github · ★ 0 · discovered
Unreviewed third-party code. Fake PoCs often contain malware — read the code before running it.
Exploitbasesixtythree/B63-POC-CVE-2026-109619 · github · ★ 0 · discovered
Unreviewed third-party code. Fake PoCs often contain malware — read the code before running it.
Exploitfmdiscioglu/php-cve-2026-109619-checker · github · ★ 0 · discovered
Unreviewed third-party code. Fake PoCs often contain malware — read the code before running it.
Exploitsantihabib/CVE-2026-109619 · github · ★ 0 · discovered
Unreviewed third-party code. Fake PoCs often contain malware — read the code before running it.
Exploitsolidevil14/php2shell-detections · github · ★ 0 · discovered
Unreviewed third-party code. Fake PoCs often contain malware — read the code before running it.
Exploitsyrex1013/CVE-2026-109619 · github · ★ 0 · discovered
Unreviewed third-party code. Fake PoCs often contain malware — read the code before running it.
Detection templatePHP 8.2 < 8.2.35, 8.3 < 8.3.36, 8.4 < 8.4.27, 8.5 < 8.5.12 - Use-After-Free Remote Code Execution · nuclei · discovered
In the news
- PHP2Shell Update: Still No Confirmed WordPress Compromises, and Answers to the Questions We’re Hearing MostWordfence · 28 Oct 2026
- Attacks on PHP2Shell Continue, But No Known Compromises as a Result YetWordfence · 22 Oct 2026
- Why It’s Urgent to Update PHP on Your WordPress Site: Two Critical PHP Vulnerabilities and What Our Testing FoundWordfence · 22 Oct 2026
- Critical PHP Security Update: Two RCE Flaws (CVE-2026-109618, CVE-2026-109619)Sucuri · 21 Oct 2026
- Major security alert: PHP vulnerable to critical RCE, attacks ongoingPatchstack · 21 Oct 2026
Timeline
- Published: 21 Oct 2026
- Last modified upstream: 04 Nov 2026
- Added to CISA KEV: 26 Oct 2026
Sources & licenses
- CVE / CVSS / CWE
- NVD record ↗ (unmodified). This product uses the NVD API but is not endorsed or certified by the NVD. CVE® © The MITRE Corporation.
- Exploitation
- CISA KEV (CC0) · EPSS by FIRST.org
- References used for the analysis
- https://github.com/php/php-src/security/advisories/GHSA-6wmf-4rv5-p3rp (Mitigation, Vendor Advisory)
- http://www.openwall.com/lists/oss-security/2026/10/21/16 (Mailing List, Third Party Advisory)
- http://www.openwall.com/lists/oss-security/2026/10/21/17 (Mailing List, Third Party Advisory)
- http://www.openwall.com/lists/oss-security/2026/10/21/23 (Mailing List, Third Party Advisory)
- http://www.openwall.com/lists/oss-security/2026/10/21/7 (Mailing List, Third Party Advisory)
- http://www.openwall.com/lists/oss-security/2026/10/22/14 (Mailing List, Third Party Advisory)
- http://www.openwall.com/lists/oss-security/2026/10/22/15 (Mailing List, Third Party Advisory)
- http://www.openwall.com/lists/oss-security/2026/10/22/16 (Mailing List, Third Party Advisory)
- http://www.openwall.com/lists/oss-security/2026/10/22/19 (Mailing List, Third Party Advisory)
- http://www.openwall.com/lists/oss-security/2026/10/22/2 (Mailing List, Third Party Advisory)
- http://www.openwall.com/lists/oss-security/2026/10/22/20 (Mailing List, Third Party Advisory)
- http://www.openwall.com/lists/oss-security/2026/10/23/4 (Mailing List, Third Party Advisory)
- Analysis, summary and remediation
- © VulnCrest