NCSC advisory details the two PHP flaws enabling unauthenticated remote code execution

LuizaJarovsky · x · 2026-10-22

A follow-up sharing the NCSC's official advisory: PHP has shipped a security update for two critical flaws — an out-of-memory handling issue (CVE-2026-109618) and a use-after-free of request state (CVE-2026-109619) — that under certain conditions enable unauthenticated remote code execution. All organizations using PHP are urged to update.

Related event: AI-discovered critical PHP vulnerabilities leaked, UK NCSC urges immediate patching(2 posts)→

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