CVE-2026-105223

maclof kubernetes-client 0.17.0 before 0.32.0 Disabled TLS Certificate Verification

Published Oct 5, 2026 CVSS 4.0 · 9.1 Critical EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Redhat
Redhat kubernetes-client
CPEs cpe:2.3:a:redhat:kubernetes-client:*:*:*:*:*:*:*:*
Vendors & Products Redhat
Redhat kubernetes-client
Type Values Removed Values Added
First Time appeared Maclof
Maclof kubernetes-client
Vendors & Products Maclof
Maclof kubernetes-client
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title maclof kubernetes-client 0.17.0 before 0.32.0 Disabled TLS Certificate Verification
Weaknesses CWE-295
References
Metrics cvssV3_1

{'score': 7.4, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N'}

cvssV4_0

{'score': 9.1, 'vector': '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Oct 27, 2026, 1:30 AM
Reserved
Oct 4, 2026, 1:04 PM
Status
Deferred
Published
Oct 5, 2026, 1:16 AM
Modified
Oct 6, 2026, 4:08 PM