GHSA-c3x7-gjmx-r2ff
LOWGHSA-c3x7-gjmx-r2ff is a low-severity (CVSS 3.1) vulnerability in serve-static. O3 Security confirms whether GHSA-c3x7-gjmx-r2ff is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
Open Redirect in serve-static
Blast Radius
Weekly download volume for affected packages — a proxy for how broadly this vulnerability is deployed.
serve-staticnpmDescription
Versions of serve-static prior to 1.6.5 ( or 1.7.x prior to 1.7.2 ) are affected by an open redirect vulnerability on some browsers when configured to mount at the root directory.
Proof of Concept
A link to http://example.com//www.google.com/%2e%2e will redirect to //www.google.com/%2e%2e
Some browsers will interpret this as http://www.google.com/%2e%2e, resulting in an external redirect.
Recommendation
Version 1.7.x: Update to version 1.7.2 or later. Version 1.6.x: Update to version 1.6.5 or later.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 📦npm | serve-static | all versions | 1.7.2 |
| 📦npm | serve-static | ≥ 1.7.0&&< 1.7.2 | 1.7.2 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for serve-static. 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 serve-static to 1.7.2 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-c3x7-gjmx-r2ff 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-c3x7-gjmx-r2ff 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-c3x7-gjmx-r2ff. 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-c3x7-gjmx-r2ff in your dependencies?
O3 detects GHSA-c3x7-gjmx-r2ff across npm dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.