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CVE-2026-109619

Php•CRITICAL · CVSS 9.8•No exploitation reported

What is CVE-2026-109619?

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).

CVSS9.8 NVD 3.1

SeverityCRITICAL

ExploitationNo exploitation reported

Triage statusNo Known Exploit

ActionPatch within 48 hours

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CWECWE-416

NVD published2026-10-21

NVD last modified2026-10-21

Timeline

2026-10-21Published to the U.S. National Vulnerability Database (NVD)
2026-10-22First covered in a defend.network daily briefing

Affected product

Php

References

Referenced in our briefings & reports

Critical RCE exploits: PHP, GitLab, LiteLLM under active attack (2026-10-22)

Related vulnerabilities

CVE-2026-109618 – Php (same product)
CVE-2026-69730 – Microsoft Windows 10 1607 (same weakness: CWE-416)
CVE-2026-68820 – Microsoft Windows Ancillary Function Driver For WinSock (same weakness: CWE-416)
CVE-2026-53359 – Linux Kernel (same weakness: CWE-416)
CVE-2026-46242 – Linux Kernel (same weakness: CWE-416)
CVE-2026-5281 – Google Dawn (same weakness: CWE-416)

Browse all tracked CVEs in the defend.network CVE database →

🤖 This CVE page is generated by defend.network from NVD, CISA KEV, EPSS, and our verified daily briefings. Severity and exploitation data come from official sources; always verify remediation steps against the official vendor advisory before acting in production.