ci: pin all GitHub Actions to commit SHAs#1875
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Pin all third-party GitHub Actions to their full commit SHAs instead of mutable tags. This prevents supply chain attacks where a malicious actor could update a tag to point to compromised code. Generated using pinact (https://github.com/suzuki-shunsuke/pinact). Claude-Generated-By: Claude Code (cli/claude-opus-4-5=1%) Claude-Steers: 5 Claude-Permission-Prompts: 8 Claude-Escapes: 2
Kludex
approved these changes
Jan 16, 2026
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Summary
Pin all third-party GitHub Actions to their full commit SHAs instead of mutable tags.
Motivation and Context
GitHub Action tags are mutable - a malicious actor with write access to an action's repository could update a tag (like
v4) to point to compromised code. By pinning to immutable commit SHAs, we prevent this class of supply chain attack.This follows the approach described in the uvicorn discussion #2687.
Changes
All third-party actions are now pinned with format:
Actions pinned:
actions/checkoutactions/cacheactions/upload-artifactactions/download-artifactactions/github-scriptastral-sh/setup-uvpre-commit/actionpypa/gh-action-pypi-publishGenerated using pinact.
Breaking Changes
None.
Checklist