Security Advisory

CVE-2020-8561

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2021-09-20 17:05:16

Last updated 2026-06-01 21:45:29

Assigner kubernetes

CVSS score 4.1

State PUBLISHED

Description

A security issue was discovered in Kubernetes where actors that control the responses of MutatingWebhookConfiguration or ValidatingWebhookConfiguration requests are able to redirect kube-apiserver requests to private networks of the apiserver. If that user can view kube-apiserver logs when the log level is set to 10, they can view the redirected responses and headers in the logs.

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