CVE-2025-53666: Jenkins Dead Man's Snitch Plugin vulnerability stores tokens in plain text

July 9, 2025

Jenkins Dead Man’s Snitch Plugin 0.1 stores Dead Man’s Snitch tokens unencrypted in job config.xml files on the Jenkins controller, where they can be viewed by users with Item/Extended Read permission or access to the Jenkins controller file system.

References

github.com/advisories/GHSA-5pcv-7v3q-hw8j
github.com/jenkinsci/deadmanssnitch-plugin
nvd.nist.gov/vuln/detail/CVE-2025-53666
www.jenkins.io/security/advisory/2025-07-09/

Code Behaviors & Features

Detect and mitigate CVE-2025-53666 with GitLab Dependency Scanning

Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Learn more about Dependency Scanning →