Apache Struts CVE-2026-104711 Enables Remote Code Execution via Legacy RESTful Mapper
Apache Struts has patched four vulnerabilities, one of which permits unauthenticated remote code execution through an OGNL injection flaw. The issue, tracked as CVE-2026-104711, only affects applications that still rely on the legacy RESTful mapper; modern configurations using the default mapper, restful2, or the official Struts REST plugin remain unaffected. Exploitation occurs when the legacy mapper extracts action names and parameters directly from the URL, allowing attackers to inject malicious OGNL expressions. Vulnerable releases span 2.0.0–2.3.37, 2.5.0–2.5.33, 6.0.0–6.11.0, and 7.0.0–7.3.0, with fixes available in 6.12.0 and 7.4.0. The remaining three flaws impact availability or cause cross-request data leakage but do not lead to code execution, and only one received an “important” severity rating.
BoletimSecOct 7, 2026Translated from Portuguese