{"id":"CVE-2026-53437","title":"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 …","summary":"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 …","severity":"medium","cvss":4.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N","cvssSource":"adp","vendor":"Jenkins Project","product":"Jenkins","affected":["Jenkins (all versions)"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-06-10T15:42:49.165047Z"},"published":"2026-06-10","updated":"2026-09-09","sourceUpdated":"2026-09-09T12:04:50.981Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-53437","references":[{"url":"https://www.jenkins.io/security/advisory/2026-06-10/#SECURITY-3711+3755","label":"Jenkins Security Advisory 2026-06-10"}],"tags":["cve.org"],"epss":0.00469,"epssPercentile":0.39777,"ingestedAt":"2026-09-09T13:09:45.315Z","slug":"CVE-2026-53437","body":"## Overview\n\nJenkins 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.\n\n## Affected\n\n- `Jenkins (all versions)`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":24,"depthScoreParts":{"impact":23.7,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}