AIKIDO-2026-812562
jenkins-core is vulnerable to Missing Authorization
43
Medium Risk
This Affects:
jenkins-coreTL;DR
The Jenkins CLI build -s flow can cancel merged queue items without verifying Item/Cancel permission. An attacker with Item/Build permission can trigger a build that merges with another queue item and cancel it by interrupting the CLI wait. The fix requires Item/Cancel permission before canceling builds in this flow.
Who does this affect?
You are affected if you are using a version that falls within the vulnerable range and users with Item/Build permission can use the Jenkins CLI build -s command.
Background info
jenkins-core is vulnerable to Missing Authorization in versions 0.0.1 - 2.568.2 and 2.569 - 2.579.
How to fix this
Upgrade the org.jenkins-ci.main:jenkins-core library to the patch version.
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