{"id":"CVE-2021-21623","details":"An incorrect permission check in Jenkins Matrix Authorization Strategy Plugin 2.6.5 and earlier allows attackers with Item/Read permission on nested items to access them, even if they lack Item/Read permission for parent folders.","aliases":["GHSA-96jw-3xw4-mq9p"],"modified":"2026-05-18T18:05:20.460451Z","published":"2021-03-18T14:15:13.227Z","references":[{"type":"ADVISORY","url":"http://www.openwall.com/lists/oss-security/2021/03/18/5"},{"type":"ADVISORY","url":"https://www.jenkins.io/security/advisory/2021-03-18/#SECURITY-2180"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/jenkinsci/matrix-auth-plugin","events":[{"introduced":"0"},{"last_affected":"847abe7874b52fa0462fc59d52ac4589119da568"}],"database_specific":{"cpe":"cpe:2.3:a:jenkins:matrix_authorization_strategy:*:*:*:*:*:jenkins:*:*","source":"CPE_FIELD","extracted_events":[{"introduced":"0"},{"last_affected":"2.6.5"}]}}],"versions":["matrix-auth-2.6.5","matrix-auth-2.6.4","matrix-auth-2.6.3","matrix-auth-2.6.2","matrix-auth-2.6.1","matrix-auth-2.6","matrix-auth-2.5","matrix-auth-2.4.2","matrix-auth-2.4.1","matrix-auth-2.4","matrix-auth-2.3","matrix-auth-2.2","matrix-auth-2.1.1","matrix-auth-2.1","matrix-auth-2.0","matrix-auth-2.0-beta-3","matrix-auth-2.0-beta-2","matrix-auth-2.0-beta-1","matrix-auth-1.7","matrix-auth-1.6","matrix-auth-1.5","matrix-auth-1.4","matrix-auth-1.3.2","matrix-auth-1.3.1","matrix-auth-1.3","matrix-auth-1.2","matrix-auth-1.1","matrix-auth-1.0"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-21623.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"}]}