CVE-2025-66219: willitmerge has a Command Injection vulnerability

November 26, 2025 (updated December 1, 2025)

willitmerge describes itself as a command line tool to check if pull requests are mergeable. There is a Command Injection vulnerability in version willitmerge@0.2.1.

Resources:

Project’s GitHub source code: https://github.com/shama/willitmerge/
Project’s npm package: https://www.npmjs.com/package/willitmerge

References

github.com/advisories/GHSA-j9wj-m24m-7jj6
github.com/shama/willitmerge
github.com/shama/willitmerge/blob/2fe91d05191fb05ac6da685828d109a3a5885028/lib/willitmerge.js
github.com/shama/willitmerge/security/advisories/GHSA-j9wj-m24m-7jj6
nvd.nist.gov/vuln/detail/CVE-2025-66219

Code Behaviors & Features

Detect and mitigate CVE-2025-66219 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 →