MEDIUM 4.3 Maven
Jenkins Open Redirect Through Newline/Tab Characters in Redirect URL
GHSA-463r-5m89-4xfr · BIT-jenkins-2026-53437 · CVE-2026-53437
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 tab or newline characters between //, allowing attackers to perform phishing attacks.
References
- ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2026-53437
- WEB https://github.com/jenkinsci/jenkins/commit/b32f2f27a82ed187a34f55b05edcc4a83563d574
- WEB https://github.com/jenkinsci/jenkins/commit/8ef52891b07eb639b38271e4bab5dab3c0f10fda
- WEB https://www.jenkins.io/security/advisory/2026-06-10/#SECURITY-3711+3755
- WEB https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53437.json
- PACKAGE https://github.com/jenkinsci/jenkins
- WEB https://bugzilla.redhat.com/show_bug.cgi?id=2487544
- WEB https://access.redhat.com/security/cve/CVE-2026-53437
- WEB https://access.redhat.com/errata/RHSA-2026:60259
- WEB https://access.redhat.com/errata/RHSA-2026:60256
- WEB https://access.redhat.com/errata/RHSA-2026:60254
- WEB https://access.redhat.com/errata/RHSA-2026:60252
- WEB https://access.redhat.com/errata/RHSA-2026:60251
- WEB https://access.redhat.com/errata/RHSA-2026:60250
- WEB https://access.redhat.com/errata/RHSA-2026:60249
- WEB https://access.redhat.com/errata/RHSA-2026:60248
- WEB https://access.redhat.com/errata/RHSA-2026:60247
- WEB https://access.redhat.com/errata/RHSA-2026:60246
- WEB https://access.redhat.com/errata/RHSA-2026:60239
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