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.

Affected Packages

NuGet KubernetesClient

Affected versions: 0 (fixed in 17.0.14)

Related CVEs

CVE-2025-9708

Key Information

GHSA ID

GHSA-w7r3-mgwf-4mqq

Published

September 17, 2025 12:31 AM

Last Modified

September 17, 2025 7:07 PM

CVSS Score

5.0 /10

Primary Ecosystem

NuGet

Primary Package

KubernetesClient

GitHub Reviewed

✓ Yes

Dataset

Last updated: September 18, 2025 6:29 AM

Data from GitHub Advisory Database. This information is provided for research and educational purposes.