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TI-2026-67698 Aliases CVE-2026-105223GHSA-52r7-jqcr-m8h9

Disabled TLS certificate verification in maclof kubernetes-client

Priority MEDIUM 41CWE-295Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Attack requirements
Present
Impact type
Spoofing
Confidentiality · integrity · availability
High · High · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-295.

Summary

maclof kubernetes-client from 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. An on-path attacker can impersonate the Kubernetes API server to capture Bearer tokens or Basic credentials and tamper with WebSocket or REST API traffic.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00199 9th percentileScored 2026-11-07
Fix Fixed kubernetes-client (maclof): 0.32.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
maclofkubernetes-client0.17.0 to before 0.32.00.32.0Patch availableCNA
  • kubernetes-client Vendormaclof Affected 0.17.0 to before 0.32.0 Fixed in 0.32.0 Patch available CNA

Remediation

Update maclof kubernetes-client to version 0.32.0 or later.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

  • Fix · CNA kubernetes-client (maclof) Fixed in 0.32.0

Timeline

  1. 2026-10-05 Threatist record created from CVE-2026-105223
  2. 2026-10-05 Alias added: GHSA-52r7-jqcr-m8h9
  3. 2026-10-05 Priority changed: LOW → MEDIUM

References

Patch 1

Other 4

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences