CVE-2026-105223
maclof kubernetes-client 0.17.0 before 0.32.0 Disabled TLS Certificate Verification
- State
- Published
- Severity
- 9.1 Critical
- Published
- Oct 5, 2026
- Updated
- Oct 27, 2026
- Reserved
- Oct 4, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 9.1 Critical | 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 | VulnCheck |
| 3.1 | 7.4 High | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N | VulnCheck |
Weaknesses
- CWE-295 Improper Certificate Validation
Affected Products
| Product | Versions |
|---|---|
kubernetes-clientmaclof |
|
References
- GitHub Issue #135issue-tracking
- https://github.com/maclof/kubernetes-clientproduct
- https://github.com/maclof/kubernetes-client/commit/924c0b935fa538ed6b4b0948127609e99d0e6f34patch
- kubernetes-client 0.32.0 Release Notesrelease-notes
- https://github.com/maclof/kubernetes-client/blob/0.31.0/src/Client.php#L309-L312technical-description
- VulnCheck Advisory: maclof kubernetes-client 0.17.0 before 0.32.0 Disabled TLS Certificate Verificationthird-party-advisory
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