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. Dependency Scanning using SBOM also detects vulnerabilities from proprietary advisories that this site does not include. Learn more about Dependency Scanning using SBOM →