{"id":"CVE-2021-21689","aliases":["BIT-jenkins-2021-21689","GHSA-j3cq-h6vh-gx7f"],"url":"https://o3.security/vulnerability/CVE-2021-21689","summary":"Multiple vulnerabilities allow bypassing path filtering of agent-to-controller access control in Jenkins","details":"FilePath#unzip and FilePath#untar were not subject to any agent-to-controller access control in Jenkins 2.318 and earlier, LTS 2.303.2 and earlier.","published":"2021-11-04T17:15:08.500Z","modified":"2026-07-09T00:12:34.685778Z","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":"https://www.jenkins.io/security/advisory/2021-11-04/#SECURITY-2455"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-09T00:12:34.685778Z"}}