A supply chain attack involving malicious GitHub Action workflows has impacted hundreds of repositories and thousands of ...

Attackers abused GitHub Actions workflows to siphon off thousands of credentials from hundreds of npm and PyPI repositories.

Ten months ago, GitHub launched Actions, its workflow automation platform. Developers could already take actions to trigger all kinds of events and use that to build custom CI/CD pipelines.

On September 5, 2025, GitGuardian discovered GhostAction, a massive supply chain attack affecting 327 GitHub users across 817 ...

GitHub Actions artifacts YAML example The easiest way to demonstrate how GitHub’s artifact upload action works is to add a step to a simple workflow that creates a temporary directory. Then, use the ...