Pin GitHub Actions to commit hashes - #3020
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soutaro
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Jun 29, 2026
Run pinact to replace mutable references (e.g. actions/checkout@v7, ruby/setup-ruby@v1) with the full commit SHA of the release they currently resolve to, keeping the version as a trailing comment. Pinning to immutable SHAs prevents a compromised or retagged action from silently changing what CI executes. Every action in .github/workflows/ is covered; the resulting versions are: actions/checkout v7.0.1 actions/cache v6.1.0 actions/upload-artifact v7.0.1 ruby/setup-ruby v1.321.0 rubygems/configure-rubygems-credentials v2.1.0 bytecodealliance/actions v1.1.3 dependabot/fetch-metadata was already pinned and is left untouched. The note above rubygems/configure-rubygems-credentials explaining why it alone used an exact release is dropped: every action carries an exact version now, so the contrast it pointed at no longer exists. Dependabot understands the "SHA # version" form and rewrites both parts, so .github/dependabot.yml keeps working as the update path. Note this makes ruby/setup-ruby lag behind its releases, which mostly exist to add newly released Ruby versions to its build matrix; a workflow pinned to an exact ruby-version can fail until Dependabot catches up, and one asking for a series such as "4.0" silently stays on an older patch. Generated with: pinact run (pinact v4.1.1) https://github.com/suzuki-shunsuke/pinact ハッシュ固め夜半の月さえ動かさず
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Run pinact to replace mutable tag references (e.g. actions/checkout@v7) with their corresponding full commit SHAs, keeping the version tag as a trailing comment. Pinning to immutable SHAs prevents a compromised or retagged action from silently changing behavior in CI.
Generated with: pinact run (pinact v4.1.0)