{"id":"CVE-2021-21677","aliases":["GHSA-58pr-hprx-7hg6"],"url":"https://o3.security/vulnerability/CVE-2021-21677","summary":"RCE vulnerability in Jenkins Code Coverage API Plugin","details":"Jenkins Code Coverage API Plugin 1.4.0 and earlier does not apply Jenkins JEP-200 deserialization protection to Java objects it deserializes from disk, resulting in a remote code execution vulnerability.","published":"2021-08-31T14:15:25.447Z","modified":"2026-07-09T00:12:28.173789Z","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":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"io.jenkins.plugins:code-coverage-api","fixedVersion":"1.4.1"}],"fix":null,"references":[{"type":"ADVISORY","url":"http://www.openwall.com/lists/oss-security/2021/08/31/1"},{"type":"ADVISORY","url":"https://www.jenkins.io/security/advisory/2021-08-31/#SECURITY-2376"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-09T00:12:28.173789Z"}}