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CVE-2022-0759

26
FAUCET Score

CVE-2022-0759 is a high-severity vulnerability affecting all versions of the Ruby kubeclient library prior to v4.9.3. This flaw allows for Man-in-the-Middle (MITM) attacks when kubeclient parses kubeconfig files that lack custom CA configurations, causing it to incorrectly accept any certificate. With a CVSS score of 8.1, this vulnerability has a high impact on confidentiality, integrity, and availability, and can be exploited remotely with high attack complexity. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 4.9.3CPE matchmatch criteria
cpe:2.3:a:redhat:kubeclient:*:*:*:*:*:ruby:*:*

CVSS Data

CVSS version used by this source: 3.1

8.1HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.2
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.93%
Probability of exploitation in next 30 days
EPSS Percentile
56.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0093 is in the 23rd percentile among its peer group of 8,915 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (9)

github_advisorypatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Logging subsystem for Red Hat OpenShift 5.4Fixed in: openshift-logging/fluentd-rhel8:v1.14.5-3
View patch
redhatpatch availablevia redhat_api
Product: OpenShift Logging 5.2Fixed in: openshift-logging/fluentd-rhel8:v1.7.4-176
View patch
redhatpatch availablevia redhat_api
Product: OpenShift Logging 5.3Fixed in: openshift-logging/fluentd-rhel8:v1.7.4-178
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Satellite 6.14 for RHEL 8Fixed in: tfm-rubygem-kubeclient-0:4.10.1-1.el8sat
View patch
redhatpatch availablevia redhat_api
Product: RHOL-5.5-RHEL-8Fixed in: openshift-logging/fluentd-rhel8:v1.14.6-29
View patch
rubygemspatch availablevia ghsa
Product: kubeclientFixed in: 4.9.3
redhatend of lifevia redhat_api
Product: Red Hat OpenShift GitOpsFixed in: openshift-gitops-1/argocd-rhel8
redhatend of lifevia redhat_api
Product: Red Hat OpenShift Container Platform 3.11Fixed in: rubygem-kubeclient

Vendor Advisories (2)

rubygemsGHSA-69p3-xp37-f692high

Improper Certificate Validation in kubeclient

Mar 26, 2022
redhatCVE-2022-0759Important

kubeclient: kubeconfig parsing error can lead to MITM attacks

Mar 22, 2022

References

github.com / ManageIQ/kubeclient/issues/554
Issue TrackingPatchThird Party Advisory
github.com / ManageIQ/kubeclient/issues/555
Issue TrackingPatchThird Party Advisory