CVE-2018-1002105

CriticalCVSS 9.8/10Last modified Jun 17, 2026

Description

In all Kubernetes versions prior to v1.10.11, v1.11.5, and v1.12.3, incorrect handling of error responses to proxied upgrade requests in the kube-apiserver allowed specially crafted requests to establish a connection through the Kubernetes API server to backend servers, then send arbitrary requests over the same connection directly to the backend, authenticated with the Kubernetes API server's TLS credentials used to establish the backend connection.

Metrics

CVSS 3.0 9.8/10CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-388

Affected software

No affected versions have been published.

Timeline

Published
Dec 5, 2018
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2018-1002105: Critical severity, CVSS 9.8 | Vulnix