CVE-2026-13208: Kubevirt

Medium severity, CVSS 6.5. EPSS: 0.1% chance of exploitation in the next 30 days.

A flaw was found in KubeVirt's virt-handler domain notify server. The gRPC handlers for HandleDomainEvent and HandleK8SEvent derive the VMI identity (namespace/name) solely from the request body without validating it against the connection's origin. Each virt-launcher pod connects through a per-VMI pipe socket, but no identity tag is propagated from the pipe path to the server handlers. This allows a compromised virt-launcher process to send forged domain lifecycle events for any other VMI scheduled on the same node, causing virt-handler to erroneously update that VMI's state and disrupt its lifecycle management.

Affected products

• Kubevirt Kubevirt: affected versions not specified
• Red Hat Openshift Virtualization: from 4, up to and including 4.22.0

Published 2026-06-24. Last modified 2026-07-06.