CVE-2026-13208
MEDIUM
6.5
CVSS 3.1
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.
Metadata
Severity & Metrics
6.5
MEDIUM CVSS 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Affected products (2)
| Vendor | Product | Platform | Versions |
|---|---|---|---|
| Red Hat | Red Hat OpenShift Virtualization 4 | — | — |
| Red Hat | Red Hat OpenShift Virtualization 4 | — | — |
Weakness (CWE)
| CWE | Source | Description |
|---|---|---|
| CWE-287 | cna | Improper Authentication |
CVSS scores (1)
| Score | Severity | Version | Source | Vector |
|---|---|---|---|---|
| 6.5 | MEDIUM | 3.1 | cna | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H |
References (2)