GHSA-cghx-9gcr-r42x is a high-severity (CVSS 7.5) CWE-23 vulnerability in io.kubernetes:client-java. O3 Security confirms whether GHSA-cghx-9gcr-r42x is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
Path Traversal in the Java Kubernetes Client
Real-World Exposure
io.kubernetes:client-java☕io.kubernetes:client-javaReal-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
Kubernetes Java client libraries in version 10.0.0 and versions prior to 9.0.1 allow writes to paths outside of the current directory when copying multiple files from a remote pod which sends a maliciously crafted archive. This can potentially overwrite any files on the system of the process executing the client code.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| ☕Maven | io.kubernetes:client-java | all versions | 9.0.2 |
| ☕Maven | io.kubernetes:client-java | ≥ 10.0.0&&< 10.0.1 | 10.0.1 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for io.kubernetes:client-java. 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.kubernetes:client-java to 9.0.2 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-cghx-9gcr-r42x 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-cghx-9gcr-r42x 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-cghx-9gcr-r42x. 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-cghx-9gcr-r42x in your dependencies?
O3 detects GHSA-cghx-9gcr-r42x across Maven dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.