Medium severity6.8GHSA Advisory· Published Sep 16, 2025· Updated Apr 15, 2026
CVE-2025-9708
CVE-2025-9708
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.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
KubernetesClientNuGet | < 17.0.14 | 17.0.14 |
Affected products
6- Range: < 17.0.14
- osv-coords5 versionspkg:apk/chainguard/kubernetes-reflectorpkg:apk/chainguard/kubernetes-reflector-compatpkg:apk/wolfi/kubernetes-reflectorpkg:apk/wolfi/kubernetes-reflector-compatpkg:nuget/kubernetesclient
< 9.1.31-r1+ 4 more
- (no CPE)range: < 9.1.31-r1
- (no CPE)range: < 9.1.31-r1
- (no CPE)range: < 9.1.31-r1
- (no CPE)range: < 9.1.31-r1
- (no CPE)range: < 17.0.14
Patches
Vulnerability mechanics
References
5News mentions
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