PHP2Shell: PHP releases emergency fixes for critical RCE flaws CVE-2026-109618 and CVE-2026-109619 after leak; early attacks reported
The PHP security team released emergency patches on October 21, 2026, at about 14:00 UTC for two critical unauthenticated remote code execution flaws, CVE-2026-109618 and CVE-2026-109619, nicknamed PHP2Shell (bleepingcomputer.com). Both are rated CVSS v4.0 9.2. Fixed versions are PHP 8.5.12, 8.4.27, 8.3.36 and 8.2.35, with minimal source …