Improper Authentication Affecting kubevirt.io/kubevirt/pkg/virt-handler/notify-server package, versions >=0.0.0
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-GOLANG-KUBEVIRTIOKUBEVIRTPKGVIRTHANDLERNOTIFYSERVER-17817960
- published7 Jul 2026
- disclosed24 Jun 2026
- creditUnknown
Introduced: 24 Jun 2026
CVE-2026-13208 (opens in a new tab)How to fix?
There is no fixed version for kubevirt.io/kubevirt/pkg/virt-handler/notify-server.
Overview
Affected versions of this package are vulnerable to Improper Authentication in the notify server process. An attacker can disrupt the lifecycle management of co-located virtual machines by sending forged domain lifecycle events through a legitimate Unix socket after gaining shell access inside a virt-launcher pod and knowing the victim's namespace and name. This is only exploitable if the attacker has shell access to a virt-launcher pod on the target node, knows the victim VMI's namespace and name, and the victim VM is scheduled on the same node.
Workaround
This vulnerability can be mitigated by restricting pods/exec permission on virt-launcher pods via admission policies (such as Gatekeeper or Kyverno rules denying exec on pods with the kubevirt.io launcher label), using node affinity or dedicated node pools to isolate high-security tenant workloads from untrusted tenants, and monitoring for unexpected VMI state transitions via cluster alerting.