by Kastro
Paper/Archive/CVE-2026-105223

CVE-2026-105223

maclof kubernetes-client — maclof kubernetes-client 0.17.0 before 0.32.0 Disabled TLS Certificate Verification

EPSS 0.2%CVSS 9.1
critical.is priorityof 100
29
CVSS 9.1 (CNA)9.1 / 10 × 3027.3Not in CISA KEV+300.0EPSS percentile 9.7.097 × 201.9No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
kubernetes-client0.17.0 – < 0.32.00.32.0CNA

Scores by source

VulnCheck (CNA)9.1CVSS: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 (CNA)7.4CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: total

References

refgithub.com/maclof/kubernetes-client/issues/135refgithub.com/maclof/kubernetes-clientpatchgithub.com/maclof/kubernetes-client/commit/924c0b935fa538ed6b4b0948127609e99d0e6f34refgithub.com/maclof/kubernetes-client/releases/tag/0.32.0writeupgithub.com/maclof/kubernetes-client/blob/0.31.0/src/Client.php#L309-L312writeupvulncheck.com/advisories/maclof-kubernetes-client-0.17.0-before-0.32.0-disabled-tls-certificate-verification