Vulnerability in KubeVirt's virt-handler for Kubernetes
CVE-2026-13208

6.5MEDIUM

Key Information:

Vendor

Red Hat
Status
Red Hat Openshift Virtualization 4
Vendor
CVE Published:
24 June 2026

What is CVE-2026-13208?

A vulnerability exists in the virt-handler component of KubeVirt, where gRPC handlers fail to validate the identity of VirtualMachineInstances (VMIs) derived solely from request bodies. This oversight permits a compromised virt-launcher process to fabricate domain lifecycle events for any VMI within the same node, leading to inaccurate state updates and potential disruption of VMI lifecycle management. Without adequate validation of the connection's origin, the integrity of VMI processes is jeopardized, emphasizing the need for stringent input validation mechanisms.

References

https://access.redhat.com/security/cve/CVE-2026-13208
vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2492220
issue-trackingx_refsource_REDHAT

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

This issue was discovered by Huzaifa Sidhpurwala (Red Hat).
.