VDB
CVE-2026-105223
CVE-2026-105223
PUBLISHED
CVSS 9.1 CRITICAL
Reported by VulnCheck · Published October 5, 2026
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.
Risk Scores
CVSS 4.0
9.1
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| maclof | kubernetes-client | 0.17.0 |
| maclof | kubernetes-client | 0.17.0 |
Timeline
- Oct 5, 2026 EPSS Score
- Oct 5, 2026 Coalition ESS Score
- Oct 5, 2026 CVE Published
- Oct 5, 2026 CVE Updated
References
- GitHub Issue #135 issue-tracking
- product
- patch
- kubernetes-client 0.32.0 Release Notes release-notes
- technical-description
- VulnCheck Advisory: maclof kubernetes-client 0.17.0 before 0.32.0 Disabled TLS Certificate Verification third-party-advisory