{"id":"CVE-2026-27100","aliases":["BIT-jenkins-2026-27100","GHSA-wfhp-qgm8-5p5c"],"url":"https://o3.security/vulnerability/CVE-2026-27100","summary":"Jenkins has a build information disclosure vulnerability through Run Parameter ","details":"Jenkins 2.550 and earlier, LTS 2.541.1 and earlier accepts Run Parameter values that refer to builds the user submitting the build does not have access to, allowing attackers with Item/Build and Item/Configure permission to obtain information about the existence of jobs, the existence of builds, and if a specified build exists, its display name.","published":"2026-02-18T15:18:43.967Z","modified":"2026-07-15T06:01:14.639108Z","cvss":{"score":4.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"org.jenkins-ci.main:jenkins-core","fixedVersion":"2.551"},{"ecosystem":"Maven","name":"org.jenkins-ci.main:jenkins-core","fixedVersion":"2.541.2"}],"fix":{"url":"https://github.com/jenkinsci/jenkins/commit/f92eadb5813f04ca27439455e2573c3171e93a45","label":"jenkinsci/jenkins@f92eadb"},"references":[{"type":"ADVISORY","url":"https://www.jenkins.io/security/advisory/2026-02-18/#SECURITY-3658"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-27100"},{"type":"WEB","url":"https://github.com/jenkinsci/jenkins/commit/f92eadb5813f04ca27439455e2573c3171e93a45"},{"type":"PACKAGE","url":"https://github.com/jenkinsci/jenkins"},{"type":"WEB","url":"https://github.com/jenkinsci/jenkins/releases/tag/jenkins-2.541.2"},{"type":"WEB","url":"https://github.com/jenkinsci/jenkins/releases/tag/jenkins-2.551"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-15T06:01:14.639108Z"}}