CVE-2026-105223
critical · 9.1maclof 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.
9.1
CVSS
0.2%
EPSS (exploit prob.)
10th
EPSS percentile
2026-10-05
Published
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weaknesses
CWE-295
References
- https://github.com/maclof/kubernetes-client
- https://github.com/maclof/kubernetes-client/blob/0.31.0/src/Client.php#L309-L312
- https://github.com/maclof/kubernetes-client/commit/924c0b935fa538ed6b4b0948127609e99d0e6f34
- https://github.com/maclof/kubernetes-client/issues/135
- https://github.com/maclof/kubernetes-client/releases/tag/0.32.0
- https://www.vulncheck.com/advisories/maclof-kubernetes-client-0.17.0-before-0.32.0-disabled-tls-certificate-verification
Query this programmatically:
curl https://evil-db.io/api/v1/cve/CVE-2026-105223