RCE via stale global state
Summary
| CVE | CVE-2026-109619 |
|---|---|
| State | PUBLISHED |
| Assigner | php |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-10-21 14:17:09 UTC |
| Updated | 2026-10-21 17:18:24 UTC |
| 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). |
Risk And Classification
Primary CVSS: v4.0 9.2 CRITICAL from [email protected]
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Problem Types: CWE-416 | CWE-755 | CWE-824 | CWE-1325 | CWE-416 CWE-416 Use after free | CWE-755 CWE-755 Improper Handling of Exceptional Conditions | CWE-824 CWE-824 Access of uninitialized pointer | CWE-1325 CWE-1325 Improperly controlled sequential memory allocation | CWE-1419 CWE-1419 Incorrect Initialization of Resource
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 4.0 | [email protected] | Secondary | 9.2 | CRITICAL | CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/C... |
| 4.0 | CNA | CVSS | 9.2 | CRITICAL | CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N |
| 3.1 | [email protected] | Primary | 9.8 | CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
CVSS v4.0 Breakdown
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS v3.1 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD Known Affected Configurations (CPE 2.3)
Vendor Declared Affected Products
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| www.wiz.io/blog/php2shell-php-rce | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | www.wiz.io | Third Party Advisory |
| www.openwall.com/lists/oss-security/2026/10/21/7 | af854a3a-2127-422b-91ae-364da2661108 | www.openwall.com | |
| github.com/php/php-src/security/advisories/GHSA-6wmf-4rv5-p3rp | [email protected] | github.com | Mitigation, Vendor Advisory |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
Vendor Comments And Credit
Discovery Credit
CNA: Wiz (en)
CNA: Ryan at Calif.io (en)
CNA: OpenAI (en)
CNA: Arnaud Le Blanc (en)
CNA: Ilija Tovilo (en)
CNA: Jakub Zelenka (en)
CNA: Nora Dossche (en)
Additional Advisory Data
Workarounds
CNA: Check the GitHub Security Advisory for mitigation strategies.