GHSA-64g7-mvw6-v9qj
GHSA-64g7-mvw6-v9qj is a security vulnerability in shelljs. O3 Security confirms whether GHSA-64g7-mvw6-v9qj is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
Improper Privilege Management in shelljs
Real-World Exposure
How broadly this vulnerability is actually deployed: weekly install volume shows current usage, and reverse-dependency count shows how many other packages break if it stays unpatched.
shelljsnpmDescription
Impact
Output from the synchronous version of shell.exec() may be visible to other users on the same system. You may be affected if you execute shell.exec() in multi-user Mac, Linux, or WSL environments, or if you execute shell.exec() as the root user.
Other shelljs functions (including the asynchronous version of shell.exec()) are not impacted.
Patches
Patched in shelljs 0.8.5
Workarounds
Recommended action is to upgrade to 0.8.5.
References
https://huntr.dev/bounties/50996581-c08e-4eed-a90e-c0bac082679c/
For more information
If you have any questions or comments about this advisory:
- Ask at https://github.com/shelljs/shelljs/issues/1058
- Open an issue at https://github.com/shelljs/shelljs/issues/new
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 📦npm | shelljs | all versions | 0.8.5 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for shelljs. 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 shelljs to 0.8.5 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-64g7-mvw6-v9qj 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-64g7-mvw6-v9qj 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-64g7-mvw6-v9qj. 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-64g7-mvw6-v9qj in your dependencies?
O3 detects GHSA-64g7-mvw6-v9qj across npm dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.