{"id":"CVE-2025-27625","aliases":["BIT-jenkins-2025-27625","GHSA-8hmv-92wm-39ch"],"url":"https://o3.security/vulnerability/CVE-2025-27625","summary":"Jenkins Open Redirect vulnerability ","details":"Various features in Jenkins redirect users to partially user-controlled URLs inside Jenkins. To prevent open redirect vulnerabilities, Jenkins limits redirections to safe URLs (neither absolute nor scheme-relative/network-path reference).\n\nIn Jenkins 2.499 and earlier, LTS 2.492.1 and earlier, redirects starting with backslash (`\\`) characters are considered safe.\n\nThis allows attackers to perform phishing attacks by having users go to a Jenkins URL that will forward them to a different site, because browsers interpret these characters as part of scheme-relative redirects.\n\nJenkins 2.500, LTS 2.492.2 considers redirects to URLs starting with backslash (`\\`) characters to be unsafe, rejecting such redirects.","published":"2025-03-05T23:15:14.297Z","modified":"2026-08-07T08:12:29.340570087Z","cvss":{"score":4.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"org.jenkins-ci.main:jenkins-core","fixedVersion":"2.492.2"},{"ecosystem":"Maven","name":"org.jenkins-ci.main:jenkins-core","fixedVersion":"2.500"}],"fix":{"url":"https://github.com/jenkinsci/jenkins/commit/4a9a3ecd08fc00d2f1c1125be789d8be24f02c9e","label":"jenkinsci/jenkins@4a9a3ec"},"references":[{"type":"ADVISORY","url":"https://www.jenkins.io/security/advisory/2025-03-05/#SECURITY-3501"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-27625"},{"type":"WEB","url":"https://github.com/jenkinsci/jenkins/commit/4a9a3ecd08fc00d2f1c1125be789d8be24f02c9e"},{"type":"PACKAGE","url":"https://github.com/jenkinsci/jenkins"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-07T08:12:29.340570087Z"}}