{"id":"CVE-2026-104711","title":"Improper neutralization of special elements used in an expression language statement ('Expression Language Injection') vulnerability in Apache Struts","summary":"Improper neutralization of special elements used in an expression language statement ('Expression Language Injection') vulnerability in Apache Struts. If the application is configured to use the legacy RESTful action mapper, a crafted re…","severity":"none","cwe":["CWE-917"],"vendor":"Apache Software Foundation","product":"org.apache.struts:struts2-core","affected":["org.apache.struts:struts2-core >= 2.0.0 <= 2.3.37","org.apache.struts:struts2-core >= 2.5.0 <= 2.5.33","org.apache.struts:struts2-core >= 6.0.0 <= 6.11.0","org.apache.struts:struts2-core >= 7.0.0 <= 7.3.0"],"published":"2026-10-05","updated":"2026-10-05","sourceUpdated":"2026-10-05T20:17:08.790","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-104711","references":[{"url":"https://cwiki.apache.org/confluence/display/WW/S2-075","label":"security@apache.org"},{"url":"http://www.openwall.com/lists/oss-security/2026/10/05/10","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-10-05T19:30:59.977Z","slug":"CVE-2026-104711","body":"## Overview\n\nImproper neutralization of special elements used in an expression language statement ('Expression Language Injection') vulnerability in Apache Struts. If the application is configured to use the legacy RESTful action mapper, a crafted request can inject an OGNL expression that may lead to remote code execution. Struts 7 is affected only when the OGNL allowlist is disabled; it is enabled by default. Applications using the default action mapper, the restful2 mapper, or the Struts REST plugin are not affected.\n\nThis issue affects Apache Struts: from 2.0.0 through 2.3.37, from 2.5.0 through 2.5.33, from 6.0.0 through 6.11.0, from 7.0.0 through 7.3.0.\n\nUsers are recommended to upgrade to version 6.12.0 or 7.4.0, which fixes the issue.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}