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  5. CVE-2025-64434

CVE-2025-64434: KubeVirt Improper TLS Certificate Management Handling Allows API Identity Spoofing

November 6, 2025 (updated November 17, 2025)

Due to improper TLS certificate management, a compromised virt-handler could impersonate virt-api by using its own TLS credentials, allowing it to initiate privileged operations against another virt-handler.

References

  • github.com/advisories/GHSA-ggp9-c99x-54gp
  • 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-ggp9-c99x-54gp
  • nvd.nist.gov/vuln/detail/CVE-2025-64434

Code Behaviors & Features

Detect and mitigate CVE-2025-64434 with GitLab Dependency Scanning

Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Learn more about Dependency Scanning →

Affected versions

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

Fixed versions

  • 1.5.3
  • 1.6.1

Solution

Upgrade to versions 1.5.3, 1.6.1 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

Source file

go/kubevirt.io/kubevirt/CVE-2025-64434.yml

Spotted a mistake? Edit the file on GitLab.

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