chore: pin GitHub Actions to commit SHAs#31
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mbjorkqvist
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Apr 10, 2026
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Thanks @slawomirbabicz!
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Problem with CI. Trying reopening the PR. |
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Pin GitHub Actions to commit SHAs
GitHub Actions referenced by tag (e.g.
actions/checkout@v4) use a mutable pointer — the tag owner can move it to a different commit at any time, including a malicious one. This is the attack vector used in the tj-actions/changed-files incident (CVE-2025-30066).Pinning to a full 40-character commit SHA makes the reference immutable. The
# tagcomment preserves human readability so reviewers can tell which version is pinned.Important: a SHA can also originate from a forked repository. A malicious actor can fork an action, push a compromised commit to the fork, and the SHA will resolve — but it won't exist in the upstream canonical repo. Each SHA in this PR was verified against the action's canonical repository (not a fork).
Changes
actions/checkout@v4->actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4.3.1actions/cache@v4->actions/cache@0057852bfaa89a56745cba8c7296529d2fc39830 # v4.3.0jdx/mise-action@v2->jdx/mise-action@c37c93293d6b742fc901e1406b8f764f6fb19dac # v2.4.4softprops/action-gh-release@v2->softprops/action-gh-release@153bb8e04406b158c6c84fc1615b65b24149a1fe # v2.6.1actions/checkout@v5->actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5.0.1Files modified
.github/workflows/release.yml.github/workflows/workflow.yml