harden(ci): SHA-pin actions, scope permissions, add dependabot cooldown - #4
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Closes the 8 open zizmor code-scanning alerts on main:
ci.yml (was completely unhardened):
- pin actions/checkout, setup-python, upload-artifact to commit SHAs
with version comments (unpinned-uses x3, ref-version-mismatch-safe)
- add top-level `permissions: {}` + job `contents: read` (excessive-permissions)
- add `persist-credentials: false` to checkout (artipacked)
zizmor.yml:
- fix codeql-action/upload-sarif pin: the comment said v3.35.5 but the SHA
f411752... does not exist in github/codeql-action (422) -> the SARIF
upload step was silently unresolvable. Corrected to the real v3.35.5 SHA
458d36d... (ref-version-mismatch)
dependabot.yml:
- add `cooldown: { default-days: 7 }` to both updaters so freshly published
(potentially compromised) releases are not pulled in immediately
(dependabot-cooldown x2)
Same action major versions as before (v4/v5/v4) -> zero behavior change,
just supply-chain hardening. Verified locally: `zizmor v1.25.2 .github/`
reports no findings.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Was & Warum
Schließt die 8 offenen zizmor Code-Scanning-Alerts auf
main.ci.ymlwar als einziger Workflow nie gehärtet.# vX.Y.Z)permissions: {}+ Jobcontents: readpersist-credentials: falsean checkoutcooldown: default-days: 7in beiden UpdaternKritischer Nebenbefund
Der codeql-action-Pin in
zizmor.ymltrug Kommentar# v3.35.5, aber die SHAf411752…existiert gar nicht ingithub/codeql-action(API 422). Der SARIF-Upload-Step war still unauflösbar. Korrigiert auf echte v3.35.5-SHA458d36d….Risiko
Gleiche Action-Major-Versionen wie zuvor (v4/v5/v4) → kein Verhaltens-Change, reine Supply-Chain-Härtung.
Verifikation
Lokal
zizmor v1.25.2 .github/→ No findings to report.🤖 Generated with Claude Code