MEDIUM 4.3

GHSA-mw82-xcg6-gx79

Jenkins: Missing permission check allows unauthorized cancellation of queue items

Quick fix

GHSA-mw82-xcg6-gx79 — org.jenkins-ci.main:jenkins-core: upgrade to the fixed version with the command below.

# pom.xml: bump <version>2.555.3</version> for org.jenkins-ci.main:jenkins-core

Details

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.

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Affected packages

Maven / org.jenkins-ci.main:jenkins-core

Introduced in: 0 Fixed in: 2.555.3

Fix # pom.xml: bump <version>2.555.3</version> for org.jenkins-ci.main:jenkins-core

Maven / org.jenkins-ci.main:jenkins-core

Introduced in: 2.556 Fixed in: 2.568

Fix # pom.xml: bump <version>2.568</version> for org.jenkins-ci.main:jenkins-core

References

https://nvd.nist.gov/vuln/detail/CVE-2026-53438 [ADVISORY]
https://github.com/jenkinsci/jenkins/commit/a154e1108f3170dc036ecbe6b2a89f164ff1554e [WEB]
https://github.com/jenkinsci/jenkins/commit/d22d0916148a430dd308760641539d06c0d8a184 [WEB]
https://github.com/jenkinsci/jenkins [PACKAGE]
https://www.jenkins.io/security/advisory/2026-06-10/#SECURITY-3712 [WEB]