CVE-2022-0759

HIGH
8.1
CVSS Score
Published: March 25, 2022 at 06:03 PM UTC
Updated: June 17, 2026 at 04:21 AM UTC
1 product affected across 1 vendorKubeclient

Using kubeclient by N/A?

Get instant alerts when new vulnerabilities affect kubeclient - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
HIGH8.1
Exploit prediction
EPSS 0.9%

Description

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).

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 4.9.34.9.3
Affected range stops below 4.9.3, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (2)

x_refsource_MISCIssue TrackingPatchThird Party Advisory
https://github.com/ManageIQ/kubeclient/issues/554
x_refsource_MISCIssue TrackingPatchThird Party Advisory
https://github.com/ManageIQ/kubeclient/issues/555

CVSS

Attack Vector
NETWORK
Complexity
HIGH
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-295

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card