Harden GitHub Actions workflows based on zizmor audit#2444
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- Move untrusted ${{ }} into env vars to prevent script injection
- Pin all actions to commit SHAs (no version bumps)
- Set top-level permissions: {} with minimal job-level grants
- Add concurrency groups and job names
- Fix PowerShell/github-script injection in Dockerfile-update workflows
- Pin semgrep container image by digest
sankettangade
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Release Not Needed
GarrettBeatty
approved these changes
Jun 26, 2026
dscpinheiro
approved these changes
Jun 26, 2026
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AppSec ticket V2263249804 flagged script injection in
issue-regression-labeler.yml. Fixed it and ran zizmor over all the workflows to address the same class of issues. This repo had the most to clean up.Same approach as aws-sdk-net-staging#1375. No action versions bumped, pinned to the SHA each tag already resolved to.
Changes
${{ }}values intoenv:vars (fixes the AppSec finding)permissions: {}with minimal per-job grantsBy submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.