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ci: Add least-privilege permissions and fix output injection - #282

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anush008 merged 2 commits into
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copilot/improve-security-workflows
Aug 26, 2026
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anush008 merged 2 commits into
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copilot/improve-security-workflows

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Copilot AI commented Aug 25, 2026

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Summary

Improves the security of the GitHub Actions workflows.

Changes

test.yml

  • Added permissions: contents: read to all four jobs (build-onnx, test, lint, clippy-features) to enforce least-privilege access. Previously jobs inherited the default broad repository permissions.

release.yml

  • Added explicit permissions to the release job — only the scopes that semantic-release actually needs (contents: write, issues: write, pull-requests: write).
  • Fixed a $GITHUB_OUTPUT injection risk: the previous echo "AUTHOR_NAME=$AUTHOR_NAME" pattern can be exploited if a commit author name contains a newline followed by another key (e.g. foo\nSECRET_KEY=injected). Replaced with printf 'AUTHOR_NAME=%s\n' "$AUTHOR_NAME" which safely treats the variable as data, not as a format string.

…tput injection

Co-authored-by: Anush008 <46051506+Anush008@users.noreply.github.com>

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🟡 Changes recommended

The updated $GITHUB_OUTPUT writes still permit newline-based output injection and should be switched to the delimiter-based output format to be safe.

Once you've addressed the issues Copilot identified, you can request another Copilot review.

Pull request overview

This PR tightens GitHub Actions workflow security by explicitly scoping GITHUB_TOKEN permissions per job and by addressing an output-writing pattern that can allow $GITHUB_OUTPUT key injection.

Changes:

  • Added explicit permissions: contents: read to the CI jobs in test.yml to enforce least-privilege repository access.
  • Added explicit permissions for the release job in release.yml to scope token capabilities to what the release process needs.
  • Updated how author name/email are written to $GITHUB_OUTPUT (but the current change still allows newline-based output injection and needs adjustment).
File summaries
File Description
.github/workflows/test.yml Adds per-job least-privilege contents: read permissions for CI jobs.
.github/workflows/release.yml Scopes release job permissions and modifies output-writing logic for author metadata.
Review details
  • Files reviewed: 2/2 changed files
  • Comments generated: 1
  • Review effort level: Lite

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Comment thread .github/workflows/release.yml Outdated
Comment on lines +31 to +35
run: |
AUTHOR_NAME=$(git log -1 --pretty=format:%an ${{ github.sha }})
AUTHOR_EMAIL=$(git log -1 --pretty=format:%ae ${{ github.sha }})
echo "AUTHOR_NAME=$AUTHOR_NAME" >> $GITHUB_OUTPUT
echo "AUTHOR_EMAIL=$AUTHOR_EMAIL" >> $GITHUB_OUTPUT
printf 'AUTHOR_NAME=%s\n' "$AUTHOR_NAME" >> $GITHUB_OUTPUT
printf 'AUTHOR_EMAIL=%s\n' "$AUTHOR_EMAIL" >> $GITHUB_OUTPUT

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Fixed in acd5144 — the Get Author Name and Email step now uses the heredoc delimiter syntax (<<EOF) to safely write multiline values to $GITHUB_OUTPUT, preventing injection via embedded newlines.

@anush008
anush008 marked this pull request as ready for review August 26, 2026 04:55
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@copilot Rename PR title as per semantic conventions.

…jection

Co-authored-by: Anush008 <46051506+Anush008@users.noreply.github.com>

Copilot AI commented Aug 26, 2026

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@copilot Rename PR title as per semantic conventions.

Updated the PR title to follow semantic commit conventions: fix(ci): use heredoc delimiter syntax for GITHUB_OUTPUT to prevent injection.

@anush008 anush008 changed the title Improve workflow security: least-privilege permissions and fix output injection ci: Add least-privilege permissions and fix output injection Aug 26, 2026
@anush008
anush008 requested a balanced review from Copilot August 26, 2026 05:02

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🟡 Changes recommended

The fixed output delimiter can collide with valid author metadata and fail the release job.

Once you've addressed the issues Copilot identified, you can request another Copilot review.

Review details
  • Files reviewed: 2/2 changed files
  • Comments generated: 1
  • Review effort level: Balanced

Comment on lines +35 to +42
{
echo "AUTHOR_NAME<<EOF"
echo "$AUTHOR_NAME"
echo "EOF"
echo "AUTHOR_EMAIL<<EOF"
echo "$AUTHOR_EMAIL"
echo "EOF"
} >> "$GITHUB_OUTPUT"
@anush008
anush008 merged commit 2c94626 into main Aug 26, 2026
13 of 14 checks passed
@anush008
anush008 deleted the copilot/improve-security-workflows branch August 26, 2026 19:12
Copilot AI added a commit that referenced this pull request Aug 26, 2026
* Improve workflow security: add least-privilege permissions and fix output injection

Co-authored-by: Anush008 <46051506+Anush008@users.noreply.github.com>

* fix(ci): use heredoc delimiter syntax for GITHUB_OUTPUT to prevent injection

Co-authored-by: Anush008 <46051506+Anush008@users.noreply.github.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: Anush008 <46051506+Anush008@users.noreply.github.com>
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3 participants