MEDIUMCVSS 4.3EPSS 0.2%

CVE-2026-53438

Jenkins: Missing permission check allows unauthorized cancellation of queue items

Published: 2026-06-10
Modified: 2026-08-13
EPSS percentile: 12%
Aliases: GHSA-mw82-xcg6-gx79
Sources: github-advisory

Summary

A missing permission check in Jenkins 2.567 and earlier, LTS 2.555.2 and earlier allows attackers with Item/Cancel permission, but lacking Item/Read permission, to cancel queue items they do not have permission to view.

Affected packages

Ecosystem	Package	Affected versions	Fixed versions
Maven	org.jenkins-ci.main:jenkins-core	—	2.555.3, 2.568

Remediation: Upgrade to 2.555.3 or later.

References

https://github.com/advisories/GHSA-mw82-xcg6-gx79

Includes data from the GitHub Advisory Database, licensed under CC-BY 4.0.

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EPSS scores provided by the FIRST.org Exploit Prediction Scoring System.