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Improper Certificate Validation The advisory has been revoked - it doesn't affect any version of package kubevirt.src  (opens in a new tab)

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  • Snyk IDSNYK-RHEL10-KUBEVIRTSRC-15247434
  • published7 Feb 2026
  • disclosed7 Nov 2025
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Introduced: 7 Nov 2025

CVE-2025-64432  (opens in a new tab)
CWE-295  (opens in a new tab)

Amendment

The Red Hat security team deemed this advisory irrelevant for RHEL:10.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kubevirt.src package and not the kubevirt.src package as distributed by RHEL.

KubeVirt is a virtual machine management add-on for Kubernetes. Versions 1.5.3 and below, and 1.6.0 contained a flawed implementation of the Kubernetes aggregation layer's authentication flow which could enable bypass of RBAC controls. It was discovered that the virt-api component fails to correctly authenticate the client when receiving API requests over mTLS. In particular, it fails to validate the CN (Common Name) field in the received client TLS certificates against the set of allowed values defined in the extension-apiserver-authentication configmap. Failre to validate certain fields in the client TLS certificate may allow an attacker to bypass existing RBAC controls by directly communicating with the aggregated API server, impersonating the Kubernetes API server and its aggregator component. This issue is fixed in versions 1.5.3 and 1.6.1.