CVE-2026-13208

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.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.0 / Impact : 4.0

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope CHANGED

References

Link	Resource
https://access.redhat.com/security/cve/CVE-2026-13208	Mitigation Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2492220	Issue Tracking Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:kubevirt:kubevirt:-:::::kubernetes::
	cpe:2.3:a:redhat:openshift_virtualization::::::::

History

25 Oct 2026, 22:10

Type	Values Removed	Values Added
Summary		(es) Se encontró una falla en el servidor de notificación de dominio virt-handler de KubeVirt. Los gestores gRPC para HandleDomainEvent y HandleK8SEvent derivan la identidad de la VMI (namespace/name) únicamente del cuerpo de la solicitud sin validarla contra el origen de la conexión. Cada pod virt-launcher se conecta a través de un socket de tubería por VMI, pero no se propaga ninguna etiqueta de identidad desde la ruta de la tubería a los gestores del servidor. Esto permite a un proceso virt-launcher comprometido enviar eventos falsificados del ciclo de vida del dominio para cualquier otra VMI programada en el mismo nodo, haciendo que virt-handler actualice erróneamente el estado de esa VMI y perturbe su gestión del ciclo de vida.

Information

Published : 2026-06-24 21:16

Updated : 2026-10-25 22:10

NVD link : CVE-2026-13208

Mitre link : CVE-2026-13208

CVE.ORG link : CVE-2026-13208

JSON object : View

Products Affected

kubevirt

kubevirt

redhat

openshift_virtualization

CWE

CWE-287

Improper Authentication

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