CVE-2026-105223
maclof kubernetes-client 0.17.0 before 0.32.0 disables TLS certificate verification in…
- Risk score
- 61/100
- CVSS
- 7.4 v3.1
- Exploit chance (30 days)
- 0.2%
- Published
- 5 Oct 2026
Open in the live forecast Today's forecast
What to know
- What it is
- 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 credent…
- Affected
- See advisory
- Fix
- Upgrade the product to 0.32.0 or later.
- Exploitation
- No known exploitation
Why it is Amber
- CVSS 7.4 high
- Remotely exploitable without logging in
- On your watchlist: kubernetes
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
Original description
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.
Last activity 5 Oct 2026. Patch Forecast updates every hour.