{"id":"CVE-2021-21646","aliases":["GHSA-p6qc-37hq-wqr6"],"url":"https://o3.security/vulnerability/CVE-2021-21646","summary":"Remote code execution vulnerability in Jenkins Templating Engine Plugin","details":"Jenkins Templating Engine Plugin 2.1 and earlier does not protect its pipeline configurations using Script Security Plugin, allowing attackers with Job/Configure permission to execute arbitrary code in the context of the Jenkins controller JVM.","published":"2021-04-21T15:15:08.440Z","modified":"2026-07-08T23:58:41.769838Z","cvss":{"score":8.8,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"epss":{"score":0.01749,"percentile":0.75686,"asOf":"2026-08-08"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"org.jenkins-ci.plugins:templating-engine","fixedVersion":"2.2"}],"fix":null,"references":[{"type":"ADVISORY","url":"http://www.openwall.com/lists/oss-security/2021/04/21/2"},{"type":"ADVISORY","url":"https://www.jenkins.io/security/advisory/2021-04-21/#SECURITY-2311"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T23:58:41.769838Z"}}