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  5. CVE-2025-64432

CVE-2025-64432: KubeVirt Affected by an Authentication Bypass in Kubernetes Aggregation Layer

November 6, 2025 (updated November 17, 2025)

_Short summary of the problem. Make the impact and severity as clear as possible.

A flawed implementation of the Kubernetes aggregation layer’s authentication flow could enable bypassing RBAC controls.

References

  • github.com/advisories/GHSA-38jw-g2qx-4286
  • github.com/kubevirt/kubevirt
  • github.com/kubevirt/kubevirt/commit/231dc69723f331dc02f65a31ab4c3d6869f40d6a
  • github.com/kubevirt/kubevirt/commit/af2f08a9a186eccc650f87c30ab3e07b669e8b5b
  • github.com/kubevirt/kubevirt/commit/b9773bc588e6e18ece896a2dad5336ef7a653074
  • github.com/kubevirt/kubevirt/security/advisories/GHSA-38jw-g2qx-4286
  • nvd.nist.gov/vuln/detail/CVE-2025-64432

Code Behaviors & Features

Detect and mitigate CVE-2025-64432 with GitLab Dependency Scanning

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Affected versions

All versions before 1.5.3, all versions starting from 1.6.0-alpha.0 before 1.6.1, all versions starting from 1.7.0-alpha.0 before 1.7.0-rc.0

Fixed versions

  • 1.5.3
  • 1.6.1
  • 1.7.0-rc.0

Solution

Upgrade to versions 1.5.3, 1.6.1, 1.7.0-rc.0 or above.

Impact 4.7 MEDIUM

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Learn more about CVSS

Weakness

  • CWE-287: Improper Authentication
  • CWE-295: Improper Certificate Validation

Source file

go/kubevirt.io/kubevirt/CVE-2025-64432.yml

Spotted a mistake? Edit the file on GitLab.

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