wiz.io/blog· Mar 15, 2025· by Merav Bar

GitHub Action tj-actions/changed-files supply chain attack: everything you need to know

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A supply chain attack on popular GitHub Action tj-actions/changed-files caused many repositories to leak their secrets. Discover how it unfolded and the steps to mitigate the risk.
🎯 Vulnerability: Web Security Vulnerability
💡 Defense Fix: Implement strict input validation, contextual output encoding, and enforce least-privilege authorization controls.