GHSA-99f4-grh7-6pcq
HIGH@grpc/grpc-js: An incoming malformed compressed message can cause a client or server crash
Blast Radius
Weekly download volume for affected packages — a proxy for how broadly this vulnerability is deployed.
@grpc/grpc-jsnpmDescription
Impact
An invalid incoming compressed message can cause a client or server process to crash. This affects all clients and servers that use @grpc/grpc-js
Patches
The following version have fixes for this vulnerability:
- 1.9.16
- 1.10.12
- 1.11.4
- 1.12.7
- 1.13.5
- 1.14.4
Workarounds
There is no workaround.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 📦npm | @grpc/grpc-js | all versions | 1.9.16 |
| 📦npm | @grpc/grpc-js | ≥ 1.10.0&&< 1.10.12 | 1.10.12 |
| 📦npm | @grpc/grpc-js | ≥ 1.11.0&&< 1.11.4 | 1.11.4 |
| 📦npm | @grpc/grpc-js | ≥ 1.12.0&&< 1.12.7 | 1.12.7 |
| 📦npm | @grpc/grpc-js | ≥ 1.13.0&&< 1.13.5 | 1.13.5 |
| 📦npm | @grpc/grpc-js | ≥ 1.14.0&&< 1.14.4 | 1.14.4 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for @grpc/grpc-js. 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 @grpc/grpc-js to 1.9.16 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-99f4-grh7-6pcq 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-99f4-grh7-6pcq 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-99f4-grh7-6pcq. 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-99f4-grh7-6pcq in your dependencies?
O3 detects GHSA-99f4-grh7-6pcq across npm dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.