ci: pin GitHub Actions to commit SHAs - #126
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bschimke95
approved these changes
Apr 9, 2026
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Summary
Pin all GitHub Actions to full commit SHAs for supply-chain security hardening, replacing mutable tag references.
Why
Mutable tags (e.g.
@v4) can be moved by upstream maintainers or by an attacker who compromises an action repo. Pinning to a SHA ensures workflows always run exactly the reviewed code.This follows GitHub's own security hardening guidance and improves our OpenSSF Scorecard rating.
Changes
Testing
uses:references in.github/workflows/now use immutable SHAs