CVE-2026-53437

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CVSS 3.1

4.3 medium

EPSS

<1%p39

Published

Jun 10, 2026 (Jun 10, 2026)

Modified

Aug 27, 2026

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.

Vendors: jenkins
Products: jenkins
Weakness: CWE-601
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

NVD CVE.org GitHub PoCs EPSS (0.5%)

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