CVSS 9.2: two teams reported the same PHP core RCE on the same day. Old PHP gets a minimal patch at best.
PHP shipped 8.5.12, 8.4.27, 8.3.36 and 8.2.35 on 21 Oct 2026 to fix CVE-2026-109618 and CVE-2026-109619, two critical flaws that allow unauthenticated remote code execution, demonstrated against Apache mod_php before any application code runs.
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