{"id":"BIT-jenkins-2026-53437","details":"Jenkins 2.567 and earlier, LTS 2.555.2 and earlier improperly determines that a redirect URL after login is legitimately pointing to Jenkins when it contains tab or newline characters between `//`, allowing attackers to perform phishing attacks.","aliases":["CVE-2026-53437","GHSA-463r-5m89-4xfr"],"modified":"2026-09-10T16:01:12.054994543Z","published":"2026-06-12T08:43:06.711Z","database_specific":{"severity":"High","cpes":["cpe:2.3:a:jenkins:jenkins:*:*:*:*:lts:*:*:*","cpe:2.3:a:jenkins:jenkins:*:*:*:*:-:*:*:*","cpe:2.3:a:jenkins:jenkins:*:*:*:*:*:maven:*:*"]},"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53437"},{"type":"ADVISORY","url":"https://www.jenkins.io/security/advisory/2026-06-10/#SECURITY-3711+3755"},{"type":"WEB","url":"https://access.redhat.com/security/cve/CVE-2026-53437"},{"type":"WEB","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2487544"},{"type":"WEB","url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53437.json"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:60239"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:60246"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:60247"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:60250"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:60251"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:60254"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:60259"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:60248"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:60249"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:60252"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:60256"}],"affected":[{"package":{"name":"jenkins","ecosystem":"Bitnami","purl":"pkg:bitnami/jenkins"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2.555.3"},{"introduced":"2.556.0"},{"fixed":"2.568.0"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/jenkins/BIT-jenkins-2026-53437.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N"}]}],"schema_version":"1.9.0"}