chore: pin GitHub Actions to commit SHAs#4517
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lwshang
approved these changes
Apr 9, 2026
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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@v6->actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2actions-rust-lang/audit@v1->actions-rust-lang/audit@72c09e02f132669d52284a3323acdb503cfc1a24 # v1.2.7actions/create-github-app-token@v3->actions/create-github-app-token@f8d387b68d61c58ab83c6c016672934102569859 # v3actions/upload-artifact@v7->actions/upload-artifact@bbbca2ddaa5d8feaa63e36b76fdaad77386f024f # v7EmbarkStudios/cargo-deny-action@v2->EmbarkStudios/cargo-deny-action@3fd3802e88374d3fe9159b834c7714ec57d6c979 # v2.0.15dorny/paths-filter@v4->dorny/paths-filter@fbd0ab8f3e69293af611ebaee6363fc25e6d187d # v4.0.1actions-rust-lang/setup-rust-toolchain@v1->actions-rust-lang/setup-rust-toolchain@150fca883cd4034361b621bd4e6a9d34e5143606 # v1.15.4actions/download-artifact@v8->actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1actions/cache@v5->actions/cache@668228422ae6a00e4ad889ee87cd7109ec5666a7 # v5.0.4actions/setup-python@v6->actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6.2.0JamesIves/github-pages-deploy-action@v4->JamesIves/github-pages-deploy-action@d92aa235d04922e8f08b40ce78cc5442fcfbfa2f # v4.8.0rust-lang/crates-io-auth-action@v1->rust-lang/crates-io-auth-action@b7e9a28eded4986ec6b1fa40eeee8f8f165559ec # v1svenstaro/upload-release-action@v2->svenstaro/upload-release-action@29e53e917877a24fad85510ded594ab3c9ca12de # 2.11.5actions/github-script@v8->actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8Files modified
.github/workflows/audit.yml.github/workflows/broadcast-frontend-hash.yml.github/workflows/build-frontend-canister.yml.github/workflows/deny.yml.github/workflows/e2e.yml.github/workflows/fmt.yml.github/workflows/lint.yml.github/workflows/publish-manifest.yml.github/workflows/publish.yml.github/workflows/release.yml.github/workflows/shellcheck.yml.github/workflows/unit.yml.github/workflows/update-docs.yml.github/workflows/update-ic-did.yml.github/workflows/update-motoko.yml.github/workflows/update-replica-version.ymlSecurity warnings