maclof kubernetes-client up to 0.31.x parseKubeconfig/parseKubeconfigFile certificate validation

Summaryinfo

A vulnerability, which was classified as problematic, was found in maclof kubernetes-client up to 0.31.x. Affected is the function parseKubeconfig/parseKubeconfigFile. The manipulation results in certificate validation. This vulnerability was named CVE-2026-105223. The attack may be performed from remote. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in maclof kubernetes-client up to 0.31.x. Affected is the function parseKubeconfig/parseKubeconfigFile. The manipulation with an unknown input leads to a certificate validation vulnerability. CWE is classifying the issue as CWE-295. The product does not validate, or incorrectly validates, a certificate. This is going to have an impact on integrity. CVE summarizes:

maclof kubernetes-client 0.17.0 before 0.32.0 disables TLS certificate verification in parseKubeconfig() and parseKubeconfigFile() when a kubeconfig lacks certificate-authority-data, ignoring insecure-skip-tls-verify. On-path attackers can impersonate the Kubernetes API server to capture Bearer tokens or Basic credentials and tamper with WebSocket or REST API traffic.

The advisory is available at github.com. This vulnerability is traded as CVE-2026-105223 since 10/04/2026. The exploitability is told to be difficult. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1587.003 by the MITRE ATT&CK project.

Upgrading to version 0.32.0 eliminates this vulnerability.

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Productinfo

Type

• Virtualization Software

Vendor

• maclof

Name

• kubernetes-client

Version

• 0.1
• 0.2
• 0.3
• 0.4
• 0.5
• 0.6
• 0.7
• 0.8
• 0.9
• 0.10
• 0.11
• 0.12
• 0.13
• 0.14
• 0.15
• 0.16
• 0.17
• 0.18
• 0.19
• 0.20
• 0.21
• 0.22
• 0.23
• 0.24
• 0.25
• 0.26
• 0.27
• 0.28
• 0.29
• 0.30
• 0.31

Website

• Product: https://github.com/maclof/kubernetes-client/

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