{"id":"CVE-2026-65905","aliases":["BIT-tomcat-2026-65905","GHSA-9xv2-5v5q-p794"],"url":"https://o3.security/vulnerability/CVE-2026-65905","summary":"Apache Tomcat: Limited replay attack possible with DIGEST authentication","details":"Authentication Bypass by Capture-replay vulnerability in Apache Tomcat's DIGEST authenticator. If, before windowSize requests have been made, a client makes a DIGEST \nauthenticated request with a nonceCount on the upper boundary of the \nreplay window then that request is replayable once only while the \nassociated nonceCount remains within the replay window.\n\n\n\n \n\nThis issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.24, from 10.1.0-M1 through 10.1.57, from 9.0.0.M1 through 9.0.120.\n\n\n\nThe following versions were EOL at the time the CVE was created but are \nknown to be affected: from 8.5.0 through 8.5.100, from 7.0.30 through 7.0.109. Other unsupported versions may also be affected.\n\n\n\nUsers are recommended to upgrade to version 11.0.25, 10.1.58 or 9.0.121, which fix the issue.","published":"2026-08-25T21:51:33.307Z","modified":"2026-10-08T02:51:35.034125654Z","cvss":{"score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"epss":{"score":0.00769,"percentile":0.53925,"asOf":"2026-09-17"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"org.apache.tomcat:tomcat","fixedVersion":"11.0.25"},{"ecosystem":"Maven","name":"org.apache.tomcat:tomcat","fixedVersion":"10.1.58"},{"ecosystem":"Maven","name":"org.apache.tomcat:tomcat","fixedVersion":"9.0.121"},{"ecosystem":"Maven","name":"org.apache.tomcat:tomcat","fixedVersion":null},{"ecosystem":"Maven","name":"org.apache.tomcat:tomcat","fixedVersion":null},{"ecosystem":"Maven","name":"org.apache.tomcat.embed:tomcat-embed-core","fixedVersion":"11.0.25"},{"ecosystem":"Maven","name":"org.apache.tomcat.embed:tomcat-embed-core","fixedVersion":"10.1.58"},{"ecosystem":"Maven","name":"org.apache.tomcat.embed:tomcat-embed-core","fixedVersion":"9.0.121"},{"ecosystem":"Maven","name":"org.apache.tomcat.embed:tomcat-embed-core","fixedVersion":null},{"ecosystem":"Maven","name":"org.apache.tomcat.embed:tomcat-embed-core","fixedVersion":null},{"ecosystem":"Maven","name":"org.apache.tomcat:tomcat-catalina","fixedVersion":"11.0.25"},{"ecosystem":"Maven","name":"org.apache.tomcat:tomcat-catalina","fixedVersion":"10.1.58"},{"ecosystem":"Maven","name":"org.apache.tomcat:tomcat-catalina","fixedVersion":"9.0.121"},{"ecosystem":"Maven","name":"org.apache.tomcat:tomcat-catalina","fixedVersion":null},{"ecosystem":"Maven","name":"org.apache.tomcat:tomcat-catalina","fixedVersion":null}],"fix":null,"references":[{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2026/08/26/4"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/65xxx/CVE-2026-65905.json"},{"type":"ADVISORY","url":"https://lists.apache.org/thread/9v114xlpgbzrrbzz5vf9f6r2q4wnxwwj"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-65905"},{"type":"PACKAGE","url":"https://github.com/apache/tomcat"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-08T02:51:35.034125654Z"}}