GHSA-jwh2-ffg4-48xc — kubernetes-client
HIGHGHSA-jwh2-ffg4-48xc is a high-severity (CVSS 7.4) Path Traversal vulnerability in io.fabric8:kubernetes-client. A fix is available for io.fabric8:kubernetes-client — see the affected versions and patch details below.
Improper Limitation of a Pathname to a Restricted Directory in Fabric8 Kubernetes Client
EPSS Exploitation Probability
EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.
How urgent is this, really
GHSA-jwh2-ffg4-48xc plotted by exploitation likelihood (EPSS) against impact (CVSS). The shaded corner — EPSS 50%+ and CVSS 7.0+ — is where this CVE doesn't sit, though severity or exploitability alone can still warrant action.
Where this sits among everything scored
Of 379,145 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Real counts from FIRST.org, not a sample — log-scaled since the landscape is heavily right-skewed.
Real-World Exposure
io.fabric8:kubernetes-client☕io.fabric8:kubernetes-client☕io.fabric8:kubernetes-client☕io.fabric8:kubernetes-clientReal-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 flaw was found in the fabric8 kubernetes-client in version 4.2.0 and after. This flaw allows a malicious pod/container to cause applications using the fabric8 kubernetes-client copy command to extract files outside the working path. The highest threat from this vulnerability is to integrity and system availability. This has been fixed in kubernetes-client-4.13.2 kubernetes-client-5.0.2 kubernetes-client-4.11.2 kubernetes-client-4.7.2
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| ☕Maven | io.fabric8:kubernetes-client | ≥ 4.2.0&&< 4.7.2 | 4.7.2io.fabric8:kubernetes-client:4.7.2 |
| ☕Maven | io.fabric8:kubernetes-client | ≥ 4.8.0&&< 4.11.2 | 4.11.2io.fabric8:kubernetes-client:4.11.2 |
| ☕Maven | io.fabric8:kubernetes-client | ≥ 4.12.0&&< 4.13.2 | 4.13.2io.fabric8:kubernetes-client:4.13.2 |
| ☕Maven | io.fabric8:kubernetes-client | ≥ 5.0.0&&< 5.0.2 | 5.0.2io.fabric8:kubernetes-client:5.0.2 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for io.fabric8:kubernetes-client, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update io.fabric8:kubernetes-client to 4.7.2 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-jwh2-ffg4-48xc 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 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like GHSA-jwh2-ffg4-48xc can be triaged on real exposure rather than presence alone.
Tailored to GHSA-jwh2-ffg4-48xc. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Fixing This On Your OS
If you run this on a Linux distribution, patch through your package manager against the distro's own security advisory below — it tracks the exact backported fix for your release, which can ship on a different timeline (and sometimes a different severity) than the upstream project.
In OpenShift Container Platform 4 (OCP) there are no plans to maintain the ose-logging-elasticsearch5 container, therefore it has been marked wontfix at this time and maybe fixed in a future update. Red Hat CodeReady WorkSpaces 2.7.0 does not ship fabric8-kubernetes-client and is therefore not affected by this flaw.
| Product | Fixed in | Advisory |
|---|---|---|
| Red Hat AMQ Online 1.7.0 GA | kubernetes-client | RHSA-2021:0986 |
| Red Hat Fuse 7.10 | kubernetes-client | RHSA-2021:5134 |
| Red Hat Integration | see advisory | RHSA-2021:3205 |
| Red Hat Integration Camel Quarkus 2 | see advisory | RHSA-2021:3207 |
| Red Hat OpenShift Container Platform 4.7 | jenkins-2-plugins-0:4.7.1616671397-1.el8 | RHSA-2021:1006 |
| Red Hat OpenShift Container Platform 4.8 | openshift4/driver-toolkit-rhel8:v4.8.0-202107210116.p0.git.37de0e6.assembly.stream | RHSA-2021:2438 |
| RHDM 7.12.0 | kubernetes-client | RHSA-2022:0297 |
| RHPAM 7.12.0 | kubernetes-client | RHSA-2022:0296 |
Frequently Asked Questions
Is GHSA-jwh2-ffg4-48xc in your dependencies?
O3 Security finds GHSA-jwh2-ffg4-48xc across Maven dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.