Main Vulnerability Database Vulnerabilities #VU146940

Missing Authorization in Jenkins and Jenkins LTS - CVE-2026-84656

Published: September 4, 2026

Vulnerability identifier: #VU146940

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-2026-84656

CWE-ID: CWE-862

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to missing authorization check. A remote user can read build parameter names and values of jobs they have no access to.

Jenkins
Jenkins LTS

Install updates from vendor's website.

Jenkins - update to 2.580
Jenkins LTS - update to 2.568.3