The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied 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). (CVE-2026-109619)

  - A critical vulnerability has been discovered in PHP that will be addressed in a Critical PHP Security     Release on October 21, 2026. Full details have not yet been shared, but public reporting from several     trusted sources indicates this is one of the two CVEs that will be included in this release. When this     flaw is chained with another PHP vulnerability, attackers could gain remote code execution. The chain has     been dubbed php2shell by researchers at Calif. This description will be updated once PHP publishes full     details. (CVE-2026-109619)

Note that Nessus relies on the presence of the package as reported by the vendor.

Detections

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Linux Distros Unpatched Vulnerability : CVE-2026-109619

critical Nessus Plugin ID 370055

Version 1.4