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.

Attack Vector Network

Attack Complexity High

Privileges Required None

Attack Requirements Present

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00199.

Exploitation none

Automatable no

Technical Impact total

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
maclof kubernetes-client unaffected
Version Status Constraints
0.17.0 affected < 0.32.0

No data.

No data.

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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/maclof/kubernetes-client cve-icon cve-icon
https://github.com/maclof/kubernetes-client/blob/0.31.0/src/Client.php#L309-L312 cve-icon cve-icon
https://github.com/maclof/kubernetes-client/commit/924c0b935fa538ed6b4b0948127609e99d0e6f34 cve-icon cve-icon
https://github.com/maclof/kubernetes-client/issues/135 cve-icon cve-icon
https://github.com/maclof/kubernetes-client/releases/tag/0.32.0 cve-icon cve-icon
https://www.vulncheck.com/advisories/maclof-kubernetes-client-0.17.0-before-0.32.0-disabled-tls-certificate-verification cve-icon cve-icon
History

Tue, 06 Oct 2026 21:30:00 +0000

Type Values Removed Values Added
First Time appeared Maclof
Maclof kubernetes-client
Vendors & Products Maclof
Maclof kubernetes-client

Mon, 05 Oct 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

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

Mon, 05 Oct 2026 01:00:00 +0000

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'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-05T14:11:33.012Z

Reserved: 2026-10-04T13:04:00.479Z

Link: CVE-2026-105223

cve-icon Vulnrichment

Updated: 2026-10-05T14:11:29.226Z

cve-icon NVD

Status : Deferred

Published: 2026-10-05T01:16:28.480

Modified: 2026-10-06T16:08:43.180

Link: CVE-2026-105223

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-06T21:09:52Z

Weaknesses