CERT-FR Warns of Apache Struts Flaws
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CERT-FR advisory details four new Apache Struts vulnerabilities enabling remote code execution, denial of service, and data exposure; patches available.
CERT-FR has published an advisory covering four vulnerabilities in Apache Struts, affecting Struts 2 (no longer maintained), Struts 6.x before 6.12.0, and Struts 7.x before 7.4.0. The flaws, tracked as CVE-2026-104711 through CVE-2026-104714 and documented in Apache's own S2-075 through S2-078 bulletins (published 2 October 2026), can allow remote code execution, remote denial of service, and unauthorized disclosure of confidential data.
No in-the-wild exploitation is mentioned in this advisory. Defenders running affected Struts versions should consult the linked Apache security bulletins for patch details and upgrade to Struts 6.12.0, 7.4.0, or later as applicable. Organizations still running the unsupported Struts 2 line should prioritize migration, as no fixes will be issued for that branch.
Mentioned in this report
Source reporting: https://www.cert.ssi.gouv.fr/avis/CERTFR-2026-AVI-1290
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