CVE-2026-53438: Jenkins: Missing permission check allows unauthorized cancellation of queue items

June 10, 2026 (updated August 13, 2026)

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.

References

github.com/advisories/GHSA-mw82-xcg6-gx79
github.com/jenkinsci/jenkins/commit/a154e1108f3170dc036ecbe6b2a89f164ff1554e
github.com/jenkinsci/jenkins/commit/d22d0916148a430dd308760641539d06c0d8a184
nvd.nist.gov/vuln/detail/CVE-2026-53438
www.jenkins.io/security/advisory/2026-06-10/

Code Behaviors & Features

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