CVE-2026-84656: Jenkins

Medium severity, CVSS 4.3. EPSS: 0.3% chance of exploitation in the next 30 days.

A missing permission check in Jenkins 2.579 and earlier, LTS 2.568.2 and earlier allows attackers with Item/Read permission on at least one job to read build parameter names and values of jobs they have no access to.

Affected products

• Jenkins Jenkins: up to and including 2.568.2; up to and including 2.579

Published 2026-09-02. Last modified 2026-09-15.