Using AWS WAF to apply mitigations for PHP2Shell RCE vulnerabilities (CVE-2026-109618 and CVE-2026-109619)
AWS publishes WAF mitigation rules for CVE-2026-109618 and CVE-2026-109619 — two critical PHP RCE flaws patched by emergency release, with the updated managed rule group now default for AWS WAF customers.
Summary written by editorial AI · Source link below
October 22, 2026: We updated this post to add the AWS WAF PHP application managed rule group. Version 2.3 of the rule group adds the PHP2Shell_BODY rule for CVE-2026-109619, and AWS made it the default version. On October 21, 2026, the PHP project released emergency fixes for two critical remote code execution (RCE) vulnerabilities in the […]
Editorial Analysis
Critical PHP RCE vulnerabilities with emergency patches and active WAF mitigations demand immediate action from any organisation running PHP-based workloads, especially on AWS.
Patch PHP runtimes immediately and activate the AWS WAF PHP managed rule group v2.3 as an interim protective layer.
Two critical remote-code-execution flaws in PHP require emergency patching across all PHP-based systems; AWS has released WAF mitigations.
Forward-looking interpretation drafted by editorial AI under human review — not a reproduction of the source. See methodology.
External link — opens at AWS Security Blog in a new tab.
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