6.5
Medium
CVE-2026-102623 A flaw was found in KubeVirt
Description
A flaw was found in KubeVirt. An authenticated user with permission to create Virtual Machine Instances (VMIs) can cause a Denial of Service (DoS) by submitting a virtual machine definition with an empty ephemeral volume. The virt-controller component fails to properly validate the volume configuration, leading to an unhandled exception and application crash during processing. Because the malformed definition persists in the cluster, the controller enters a continuous crash loop, disrupting virtual machine lifecycle operations across the entire environment.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Red Hat OpenShift Virtualization 4 | Versions not published |
References
- access.redhat.com access.redhat.com
- RHBZ#2543219 bugzilla.redhat.com
Timeline
- Published
- Last modified
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