{"id":"BIT-tomcat-2026-68569","summary":"Apache Tomcat: Principal lookup can fail open in some cases","details":"Improper Authentication vulnerability in Apache Tomcat meant that in some circumstances (e.g. CLIENT-CERT, SPNEGO) that a user would be authenticated even if the user did not exist in the DataSourceRealm.\n\n\n\nThis issue affects Apache Tomcat: from 11.0.0 through 11.0.24, from 10.1.0 through 10.1.57, from 9.0.0 through 9.0.120.\n\n\n\n\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 7.0.0 through 7.0.109. Other unsupported versions may also be affected.\n\n\n\n\n\n\n\nUsers are recommended to upgrade to version 11.0.25, 10.1.58 or 9.0.121, which fix the issue.","aliases":["CVE-2026-68569"],"modified":"2026-09-11T08:15:05.557906689Z","published":"2026-09-11T05:58:38.943Z","database_specific":{"severity":"High","cpes":["cpe:2.3:a:apache:tomcat:*:*:*:*:*:maven:*:*"]},"references":[{"type":"ADVISORY","url":"http://www.openwall.com/lists/oss-security/2026/08/26/8"},{"type":"ADVISORY","url":"https://lists.apache.org/thread/8robqo76q0osxgw0b5lcwgz0hcf9h4zc"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-68569"}],"affected":[{"package":{"name":"tomcat","ecosystem":"Bitnami","purl":"pkg:bitnami/tomcat"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"9.0.121"},{"introduced":"10.0.0"},{"fixed":"10.1.58"},{"introduced":"11.0.0"},{"fixed":"11.0.25"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/tomcat/BIT-tomcat-2026-68569.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N"}]}],"schema_version":"1.9.0"}