Security vulnerabilities and automated fixes for yaml security issues
3 posts found
A high-severity shell injection vulnerability was discovered and fixed in a GitHub Actions workflow file, where direct use of `${{ github.* }}` context variables in `run:` steps could allow attackers to execute arbitrary code on CI/CD runners. This post explains how the attack works, what the fix looks like, and how you can audit your own workflows to prevent secrets theft and code compromise. Understanding this class of vulnerability is essential for any team using GitHub Actions in production.
A critical shell injection vulnerability was discovered and patched in a GitHub Actions workflow file, where direct use of `${{...}}` variable interpolation with GitHub context data in `run:` steps could allow attackers to inject malicious code into CI/CD runners. This type of vulnerability can expose secrets, credentials, and source code to bad actors. The fix involves routing untrusted input through intermediate environment variables — a simple but powerful mitigation that every developer usin
A high-severity shell injection vulnerability was discovered and fixed in a GitHub Actions release workflow, where direct use of `${{ github.* }}` context variables in `run:` steps could allow attackers to execute arbitrary code in the CI/CD runner. This type of vulnerability can lead to secret theft, code tampering, and full pipeline compromise. The fix involves a simple but critical pattern change: routing untrusted context data through intermediate environment variables before using them in s