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DUPE #627

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w-mclaughlin wants to merge 2 commits into from
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DUPE #627

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4c1d3a0
chore(security): quote PR head ref in Clean Notebooks workflow to pre…
w-mclaughlin Jun 30, 2026
4928625
Auto-clean notebooks
actions-user Jul 1, 2026
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6 changes: 5 additions & 1 deletion .github/workflows/cleanup.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -30,6 +30,10 @@ jobs:
- name: Commit and push if changed
env:
GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
# Bind the untrusted PR head ref to an env var so the shell never sees the raw
# ${{ }} expansion. A malicious branch name (e.g. containing $(...) or ;) is then
# treated as literal data by the quoted "$HEAD_REF" below, not executed. (CWE-78)
HEAD_REF: ${{ github.event.pull_request.head.ref }}
run: |
git config --global user.name 'GitHub Action'
git config --global user.email 'action@github.com'
Expand All @@ -38,5 +42,5 @@ jobs:
echo "No changes to commit"
else
git commit -m "Auto-clean notebooks"
git push origin HEAD:${{ github.event.pull_request.head.ref }}
git push origin "HEAD:$HEAD_REF"
fi
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