CVE-2026-109619: exploitation status and patch state

CVE-2026-109619 · CVSS 9.8 CRITICAL · EPSS 100.0% · patch available

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).

Is CVE-2026-109619 exploited?

Which products and versions are affected?

Is there a patch?

Yes. Update to one of these or later:

PHP 8.2.*8.2.35
PHP 8.3.*8.3.36
PHP 8.4.*8.4.27
PHP 8.5.*8.5.12

From PHP Group's CVE record · PHP Group advisory

pan-os 10.2.010.2.7
pan-os 11.1.011.1.4
pan-os 11.2.011.2.4
pan-os 12.1.012.1.4
pan-os 12.2.012.2.4

From NVD's analysis

What PlainSec published about CVE-2026-109619

Primary sources

KEV and EPSS are re-checked daily. Record last updated 2026-10-26.