Main Vulnerability Database Vulnerabilities #VU134982

Missing Authorization in Jenkins and Jenkins LTS - CVE-2026-53439

Published: June 22, 2026

Vulnerability identifier: #VU134982

CSH Severity: Medium

CVSS v4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-53439

CWE-ID: CWE-862

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to bypass authorization checks.

The vulnerability exists due to improper authorization checks. A remote user can determine other users' configured timezone and enumerate view names of other users' "My Views".

Affected software

Jenkins
Jenkins LTS

How to mitigate CVE-2026-53439

Install updates from vendor's website.

Jenkins - update to 2.568
Jenkins LTS - update to 2.555.3

External References

https://jenkins.io/security/advisory/2026-06-10/

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