CVE-2026-109619
8.1, highPHP Group PHP Use-After-Free Vulnerability
- CVSS
- 8.1, high high CVSS v3.1
- EPSS, next 30 days
- 6% higher than 93% of scored CVEs
- Exploitation
- No public evidence
- Published
- 21 Oct 20262 days ago
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).
Details
- Vendor
- PHP Group
- Product
- PHP
- Weakness
- CWE-416 (opens in a new tab)
- Status
- Modified
- Updated
- 22 Oct 2026
- Assigner
- security@php.net
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
References 12
Advisories 12
- openwall.com /lists/oss-security/2026/10/21/16 (opens in a new tab)
- openwall.com /lists/oss-security/2026/10/21/17 (opens in a new tab)
- openwall.com /lists/oss-security/2026/10/21/23 (opens in a new tab)
- openwall.com /lists/oss-security/2026/10/21/7 (opens in a new tab)
- openwall.com /lists/oss-security/2026/10/22/14 (opens in a new tab)
- openwall.com /lists/oss-security/2026/10/22/15 (opens in a new tab)
- openwall.com /lists/oss-security/2026/10/22/16 (opens in a new tab)
- openwall.com /lists/oss-security/2026/10/22/19 (opens in a new tab)
The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.
Other PHP Group CVEs
Every PHP Group CVE we holdSame vendor in what we hold, not a known link between the flaws.
- CVE-2024-4577 PHP-CGI OS Command Injection Vulnerability KEV EPSS 100% 9.8, critical
- CVE-2026-109618 PHP Group PHP Use-After-Free Vulnerability EPSS 5% 9.8, critical
Beyond this page
Is CVE-2026-109619 in your network?
This page tells you how dangerous CVE-2026-109619 is out there. Whether it sits on one of your devices, only a scan of your own network can tell. That is what our systems do, every day, for the companies we protect.
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Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 23 Oct 2026, not the live upstream state.