GHSA-qgc4-8p88-4w7m
Fix: Aarondoran/servify-express@197d848GHSA-qgc4-8p88-4w7m is a Uncontrolled Resource Consumption vulnerability in servify-express. O3 Security confirms whether GHSA-qgc4-8p88-4w7m is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
Servify-express rate limit issue
Exploitation Status
No confirmed exploitation observed yet
- CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.
Exploitation and automatability from CISA’s SSVC triage for GHSA-qgc4-8p88-4w7m.
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.
servify-expressnpmDescription
Impact
The Express server uses express.json() without a size limit, which can allow attackers to send extremely large request bodies. This may lead to excessive memory usage, degraded performance, or process crashes, resulting in a Denial of Service (DoS). Any application using the JSON parser without limits and exposed to untrusted clients is affected.
Patches
This issue is not a flaw in Express itself but in configuration. Users should set a request-size limit when enabling the JSON body parser. For example:
app.use(express.json({ limit: "100kb" }));
Workarounds
Users can mitigate the issue without upgrading by:
- Adding a
limitoption to the JSON parser - Implementing rate limiting at the application or reverse-proxy level
- Rejecting unusually large requests before parsing
- Using a reverse proxy (such as NGINX) to enforce maximum request body sizes
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 📦npm | servify-express | all versions | 1.2 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for servify-express. 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 servify-express to 1.2 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-qgc4-8p88-4w7m 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-qgc4-8p88-4w7m 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-qgc4-8p88-4w7m. 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-qgc4-8p88-4w7m in your dependencies?
O3 detects GHSA-qgc4-8p88-4w7m across npm dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.