CVE catalog
CVE-2022-0759
ruby-kubeclient: CVE-2022-0759
- Severity
- High · CVSS 8.3
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.94% · Oct 25, 2026
A flaw was found in all versions of kubeclient up to (but not including) v4.9.3, the Ruby client for Kubernetes REST API, in the way it parsed kubeconfig files. When the kubeconfig file does not configure custom CA to verify certs, kubeclient ends up accepting any certificate (it wrongly returns VERIFY_NONE). Ruby applications that leverage kubeclient to parse kubeconfig files are susceptible to Man-in-the-middle attacks (MITM).
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | ruby-kubeclient | sid | 4.13.0-4 | fixed |
| Debian | ruby-kubeclient | forky | 4.13.0-4 | fixed |
| Debian | ruby-kubeclient | trixie | 4.12.0-1 | fixed |
| Debian | ruby-kubeclient | bookworm | 4.9.3-2 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | ruby-kubeclient | source | sid | 4.9.3-1 | not yet assigned | Not reported | [1014780] |
| Debian | ruby-kubeclient | source | forky | 4.9.3-1 | not yet assigned | Not reported | [1014780] |
| Debian | ruby-kubeclient | source | trixie | 4.9.3-1 | not yet assigned | Not reported | [1014780] |
| Debian | ruby-kubeclient | source | bookworm | 4.9.3-1 | not yet assigned | Not reported | [1014780] |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [ruby-kubeclient]Fixed
Details (2)
4.9.3-2· all · bookwormFixed · Fixed:
4.9.3-1dsa · ruby-kubeclient · debian · bookworm
4.9.3-2· all · bookwormFixed · Fixed:
4.9.3-1dsa · ruby-kubeclient · debian · bookworm
Observed: