{"id":"CVE-2016-4436","aliases":["GHSA-xm92-v2mq-842q"],"url":"https://o3.security/vulnerability/CVE-2016-4436","summary":"Apache Struts improper action name cleanup","details":"Apache Struts 2 before 2.3.29 and 2.5.x before 2.5.1 allow attackers to have unspecified impact via vectors related to improper action name clean up.","published":"2016-10-03T15:59:01.913Z","modified":"2026-07-08T05:48:15.796966814Z","cvss":{"score":9.8,"severity":"CRITICAL","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"org.apache.struts:struts2-core","fixedVersion":"2.3.29"},{"ecosystem":"Maven","name":"org.apache.struts:struts2-core","fixedVersion":"2.5.1"}],"fix":{"url":"https://github.com/apache/struts/commit/237432512df0e27013f7c7b9ab59fdce44ca34a5","label":"apache/struts@2374325"},"references":[{"type":"ADVISORY","url":"http://www-01.ibm.com/support/docview.wss?uid=ssg1S1009282"},{"type":"ADVISORY","url":"http://www-01.ibm.com/support/docview.wss?uid=swg21987854"},{"type":"ADVISORY","url":"http://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html"},{"type":"ADVISORY","url":"http://www.securityfocus.com/bid/91280"},{"type":"ADVISORY","url":"https://struts.apache.org/docs/s2-035.html"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2016-4436"},{"type":"WEB","url":"https://github.com/apache/struts/commit/237432512df0e27013f7c7b9ab59fdce44ca34a5"},{"type":"WEB","url":"https://github.com/apache/struts/commit/27ca165ddbf81c84bafbd083b99a18d89cc49ca7"},{"type":"PACKAGE","url":"https://github.com/apache/struts"},{"type":"WEB","url":"https://web.archive.org/web/20161015140316/http://www.securityfocus.com/bid/91280"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T05:48:15.796966814Z"}}