Access Restriction Bypass Affecting Open this link in a new tab package, versions <1.21.0-rc.0

  • Exploit Maturity

    Proof of concept

  • Attack Complexity


  • Privileges Required


  • Integrity


  • Availability


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  • snyk-id


  • published

    15 Apr 2021

  • disclosed

    14 Apr 2021

  • credit


How to fix?

Upgrade to version 1.21.0-rc.0 or higher.

Overview is a Kubernetes, also known as K8s, is an open source system for managing containerized applications across multiple hosts. It provides basic mechanisms for deployment, maintenance, and scaling of applications.

Affected versions of this package are vulnerable to Access Restriction Bypass. Validating Admission Webhook does not observe some previous fields. A vulnerability was found in kube-apiserver that could allow node updates to bypass a Validating Admission Webhook. The highest threat from this vulnerability is to integrity and availability.