GHSA-g56w-cwg4-hxx9
CRITICALGHSA-g56w-cwg4-hxx9 is a critical-severity (CVSS 9.8) remote code execution vulnerability in io.quarkus:quarkus-vertx-http-deployment. O3 Security confirms whether GHSA-g56w-cwg4-hxx9 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
Code injection in quarkus dev ui config editor
Blast Radius
io.quarkus:quarkus-vertx-http-deployment☕io.quarkus:quarkus-vertx-http-deploymentReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.
Description
A vulnerability was found in quarkus. This security flaw happens in Dev UI Config Editor which is vulnerable to drive-by localhost attacks leading to remote code execution.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| ☕Maven | io.quarkus:quarkus-vertx-http-deployment | ≥ 2.14.0&&< 2.14.2.Final | 2.14.2.Final |
| ☕Maven | io.quarkus:quarkus-vertx-http-deployment | all versions | 2.13.5.Final |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for io.quarkus:quarkus-vertx-http-deployment. 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 io.quarkus:quarkus-vertx-http-deployment to 2.14.2.Final or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-g56w-cwg4-hxx9 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-g56w-cwg4-hxx9 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-g56w-cwg4-hxx9. 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-g56w-cwg4-hxx9 in your dependencies?
O3 detects GHSA-g56w-cwg4-hxx9 across Maven dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.