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Security Advisories

CVE-2021-25735

NVD

https://nvd.nist.gov/vuln/detail/CVE-2021-25735

Severity

6.5

Medium

CVSS V3

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Description

A security issue was discovered in kube-apiserver that could allow node updates to bypass a Validating Admission Webhook. Clusters are only affected by this vulnerability if they run a Validating Admission Webhook for Nodes that denies admission based at least partially on the old state of the Node object. Validating Admission Webhook does not observe some previous fields.

References

  • https://nvd.nist.gov/vuln/detail/CVE-2021-25735
  • https://github.com/advisories/GHSA-g42g-737j-qx6j
  • https://pkg.go.dev/vuln/GO-2022-0907
  • https://github.com/kubernetes/kubernetes/issues/100096
  • https://groups.google.com/g/kubernetes-security-announce/c/FKAGqT4jx9Y

Affected packages

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