PHP Releases Fixes for Two Critical RCE Flaws; Public Exploit Claims Only Partly Verified
PHP released versions 8.5.12, 8.4.27, 8.3.36, and 8.2.35 on October 21, 2026, to address two critical vulnerabilities, CVE-2026-109618 (OOM corruption) and CVE-2026-109619 (stale global state across requests), both scored 9.2 under CVSS v4.0. A researcher testing a publicly circulated proof-of-concept found it did not reproduce the claimed use-after-free or remote code execution in several test builds, and found the official patches address different root causes. However, a chain combining the session.upload_progress feature with an application-level file inclusion vulnerability did achieve unauthenticated code execution in the researcher's lab. The researcher concluded that upgrading is the complete fix for the core CVEs, while applications using such a chain may remain exposed after upgrading.
This is an AI-generated summary. ShortSingh links to the original source for the complete article.
Discussion (0)
Log in to join the discussion and vote.
Log in