jenkinsci/jenkins · Security
Jenkins Open Redirect via Relative Path Segments in Post-Login Redirect URL
- GHSA ID
- GHSA-3rqh-hch3-jhpc
- CVE ID
- CVE-2026-53436
- Severity
- medium
- Published
- Updated
- CVSS
- 4.3 · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
- CVSS v3
- 4.3 · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
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.
CWEs
- CWE-601 · URL Redirection to Untrusted Site ('Open Redirect')
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-53436 ↗
- https://www.jenkins.io/security/advisory/2026-06-10/#SECURITY-3711+3755 ↗
- https://github.com/jenkinsci/jenkins/commit/8ef52891b07eb639b38271e4bab5dab3c0f10fda ↗
- https://github.com/jenkinsci/jenkins/commit/b32f2f27a82ed187a34f55b05edcc4a83563d574 ↗
- https://github.com/advisories/GHSA-3rqh-hch3-jhpc ↗