Access Control Vulnerability in Jenkins by CloudBees

CVE-2026-27100

What is CVE-2026-27100?

An access control vulnerability in Jenkins allows users with limited permissions to access run parameters tied to jobs they are not authorized to see. Specifically, it permits users with Item/Build and Item/Configure permissions to discern the existence of jobs and builds, along with sensitive information such as display names of specific builds. This risk highlights the need for enhanced access controls to protect against unauthorized information disclosure.

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References