MEDIUM 4.3 Maven
Jenkins Open Redirect via Relative Path Segments in Post-Login Redirect URL
GHSA-3rqh-hch3-jhpc · BIT-jenkins-2026-53436 · CVE-2026-53436
Published · Modified
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Description
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 relative path segments (./ or ../), allowing attackers to perform phishing attacks.
References
- ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2026-53436
- WEB https://github.com/jenkinsci/jenkins/commit/8ef52891b07eb639b38271e4bab5dab3c0f10fda
- WEB https://github.com/jenkinsci/jenkins/commit/b32f2f27a82ed187a34f55b05edcc4a83563d574
- WEB https://github.com/jenkinsci/jenkins
- WEB https://www.jenkins.io/security/advisory/2026-06-10/#SECURITY-3711+3755
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