What is GHSA-463r-5m89-4xfr?

GHSA-463r-5m89-4xfr is a security advisory published by GitHub Security Advisories with Medium severity. Jenkins 2.567 and earlier, LTS 2.555.2 and earlier improperly determines that a redirect URL...

Which CVE IDs does GHSA-463r-5m89-4xfr cover?

GHSA-463r-5m89-4xfr covers the following CVE IDs: CVE-2026-53437. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-463r-5m89-4xfr?

GHSA-463r-5m89-4xfr has a CVSS v3 base score of 4.3, published by GitHub Security Advisories.

GHSA-463r-5m89-4xfrMediumCVSS 4.3

Jenkins 2.567 and earlier, LTS 2.555.2 and earlier improperly determines that a redirect URL...

Vendor

GitHub Security Advisories

Published

June 10, 2026

Last Modified

June 10, 2026

🔗 CVE IDs covered (1)

CVE-2026-53437 →

📋 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 (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-53437
https://www.jenkins.io/security/advisory/2026-06-10/#SECURITY-3711+3755
https://github.com/advisories/GHSA-463r-5m89-4xfr