{"id":"CVE-2021-21626","aliases":["GHSA-7j3x-xm4j-jfj7"],"url":"https://o3.security/vulnerability/CVE-2021-21626","summary":"Missing permission checks in Jenkins Warnings Next Generation Plugin allow listing workspace contents","details":"Jenkins Warnings Next Generation Plugin 8.4.4 and earlier does not perform permission checks in methods implementing form validation.\n\nThis allows attackers with Item/Read permission but without Item/Workspace or Item/Configure permission to check whether attacker-specified file patterns match workspace contents. A sequence of requests can be used to effectively list workspace contents.\n\nJenkins Warnings Next Generation Plugin 8.5.0 requires Item/Configure permission to validate patterns with workspace contents.","published":"2021-03-18T14:15:13.490Z","modified":"2026-07-09T00:22:31.669962Z","cvss":{"score":4.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"io.jenkins.plugins:warnings-ng","fixedVersion":"8.5.0"}],"fix":null,"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-2041"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-21626"},{"type":"PACKAGE","url":"https://github.com/jenkinsci/warnings-ng-plugin"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-09T00:22:31.669962Z"}}