kubernetes-client/csharp · Security

Kubernetes C# client accepts certificates from any CA without properly verifying the trust chain

GHSA ID
GHSA-w7r3-mgwf-4mqq
CVE ID
CVE-2025-9708
Severity
medium
Published
Updated
CVSS
6.8 · CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
CVSS v3
6.8 · CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N

Description

A vulnerability exists in the Kubernetes C# client where the certificate validation logic accepts properly constructed certificates from any Certificate Authority (CA) without properly verifying the trust chain. This flaw allows a malicious actor to present a forged certificate and potentially intercept or manipulate communication with the Kubernetes API server, leading to possible man-in-the-middle attacks and API impersonation.

CWEs

References