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6.5 Medium

CVE-2026-13208 A flaw was found in KubeVirt's virt-handler domain notify server

Description

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 and versions

Product Affected versions Fixed in
Red Hat OpenShift Virtualization 4 Versions not published

References

Timeline

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