{"id":"CVE-2021-21697","aliases":["BIT-jenkins-2021-21697","GHSA-cv2w-q8c3-xjv7"],"url":"https://o3.security/vulnerability/CVE-2021-21697","summary":"Agent-to-controller access control allows reading/writing most content of build directories in Jenkins","details":"Jenkins 2.318 and earlier, LTS 2.303.2 and earlier allows any agent to read and write the contents of any build directory stored in Jenkins with very few restrictions.","published":"2021-11-04T17:15:08.927Z","modified":"2026-07-08T22:15:03.887455Z","cvss":{"score":9.1,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"org.jenkins-ci.main:jenkins-core","fixedVersion":"2.303.3"},{"ecosystem":"Maven","name":"org.jenkins-ci.main:jenkins-core","fixedVersion":"2.319"}],"fix":null,"references":[{"type":"ADVISORY","url":"http://www.openwall.com/lists/oss-security/2021/11/04/3"},{"type":"FIX","url":"https://www.jenkins.io/security/advisory/2021-11-04/#SECURITY-2428"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T22:15:03.887455Z"}}