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Case File

CVE-2020-8561

MEDIUM · CVSS 4.1 EPSS 2.10% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-09-20 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 4.1. It affects Kubernetes. Public exploit code or proof-of-concept references have been detected in its references.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2020-8561
Severity
MEDIUM
CVSS
4.1
EPSS
2.10%
Kubernetes

Original NVD 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.

Related CVEs

Other vulnerabilities affecting the same vendor(s)