CVE-2026-105223
maclof kubernetes-client 0.17.0 before 0.32.0 Disabled TLS Certificate Verification
maclof kubernetes-clientContainers & cloud
CVSS
9.1CriticalExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.20%Chance of exploitation activity in the next 30 days, higher than 9% of CVEs. Scored 23 Oct 2026FIRST EPSS
What fixes it
- 0.32.0kubernetes-clientCVE List
A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.
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.
Text from CVE List
Affected versions 1
- kubernetes-clientaffected: 0.17.0 before 0.32.0CVE List
References 6
- github.com/maclof/kubernetes-client/commit/924c0b935fa538ed6b4b0948127609e99d0e6f34Fixvia CVE List
- github.com/maclof/kubernetes-client/releases/tag/0.32.0Fixvia CVE List
- vulncheck.com/advisories/maclof-kubernetes-client-0.17.0-before-0.32.0-disabled-tls-certificate-verificationAdvisoryvia CVE List
- github.com/maclof/kubernetes-client/issues/135Referencevia CVE List
- github.com/maclof/kubernetes-clientReferencevia CVE List
- github.com/maclof/kubernetes-client/blob/0.31.0/src/Client.php#L309-L312Referencevia CVE List