GHSA-cxww-7g56-2vh6
HIGH@actions/download-artifact has an Arbitrary File Write via artifact extraction
Blast Radius
actions/download-artifactReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects GitHub Actions packages — download data is not available via public APIs for these ecosystems.
Description
Impact
Versions of actions/download-artifact before 4.1.3 are vulnerable to arbitrary file write when downloading and extracting a specifically crafted artifact that contains path traversal filenames.
Patches
Upgrade to version 4.1.3 or higher. Alternatively use 'v4' tag which points to the latest and secure version.
References
- https://snyk.io/research/zip-slip-vulnerability
- https://github.com/actions/download-artifact/releases/tag/v4.1.3
- https://github.com/actions/download-artifact/pull/299
CVE
CVE-2024-42471
Credits
Justin Taft from Google
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 📦GitHub Actions | actions/download-artifact | ≥ 4.0.0&&< 4.1.3 | 4.1.3 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for actions/download-artifact. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.
Fix
Update actions/download-artifact to 4.1.3 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-cxww-7g56-2vh6 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 pinpoints whether GHSA-cxww-7g56-2vh6 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.
Tailored to GHSA-cxww-7g56-2vh6. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is GHSA-cxww-7g56-2vh6 in your dependencies?
O3 detects GHSA-cxww-7g56-2vh6 across GitHub Actions dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.