Detections
Analytics
CVE-2021-25735
medium
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://www.ibm.com/support/pages/node/6549374
https://www.ibm.com/support/pages/node/6447812
https://groups.google.com/g/kubernetes-security-announce/c/FKAGqT4jx9Y