Medium severity4.3NVD Advisory· Published Jun 10, 2026· Updated Jun 11, 2026
CVE-2026-53436
CVE-2026-53436
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
org.jenkins-ci.main:jenkins-coreMaven | >= 2.556, < 2.568 | 2.568 |
org.jenkins-ci.main:jenkins-coreMaven | < 2.555.3 | 2.555.3 |
Affected products
6<=2.567, L=2.555.2+ 3 more
- (no CPE)range: <=2.567, L=2.555.2
- cpe:2.3:a:jenkins:jenkins:*:*:*:*:-:*:*:*range: <2.568
- cpe:2.3:a:jenkins:jenkins:*:*:*:*:lts:*:*:*range: <2.555.3
- (no CPE)range: <=2.567, LTS <=2.555.2
- osv-coords2 versions
< 2.555.3-r0+ 1 more
- (no CPE)range: < 2.555.3-r0
- (no CPE)range: < 2.555.3
Patches
Vulnerability mechanics
References
5- github.com/advisories/GHSA-3rqh-hch3-jhpcghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-53436ghsaADVISORY
- www.jenkins.io/security/advisory/2026-06-10/nvdVendor AdvisoryWEB
- github.com/jenkinsci/jenkins/commit/8ef52891b07eb639b38271e4bab5dab3c0f10fdaghsaWEB
- github.com/jenkinsci/jenkins/commit/b32f2f27a82ed187a34f55b05edcc4a83563d574ghsaWEB
News mentions
2- Jenkins Core: Eight Vulnerabilities Disclosed Together on June 10, 2026Vypr Intelligence · Jun 10, 2026
- Jenkins Security Advisory 2026-06-10Jenkins Security Advisories · Jun 10, 2026