Apache Struts

CISA Adds Five Actively Exploited Vulnerabilities in Apache Struts, BIND, ProFTPD, Strapi and ONLYOFFICE Docs to KEV Catalog

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added five vulnerabilities to its Known Exploited Vulnerabilities (KEV) catalog on October 8, 2026, confirming active exploitation in the wild. The affected products include Apache Struts, BIND, ProFTPD, Strapi, and ONLYOFFICE Docs, with CVEs issued between 2015 and 2023. Federal agencies have until October 11, 2026, to apply mitigations or remove affected systems. One highlighted issue, Strapi CVE-2023-22894, stems from plaintext storage of sensitive information, allowing authenticated attackers to extract user data via query filters. When combined with CVE-2023-22621, the flaws enable remote code execution. CISA also warned that some impacted products may no longer receive vendor support.

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.