Auth bypass in Kubevirt
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…
Vulnerability class: Broken Authentication
EPSS: 0.001 (0.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H.
Affected products
Weakness classification (CWE)
References
- secalert@redhat.com (x_refsource_REDHAT, Mitigation, vdb-entry, Vendor Advisory)
- secalert@redhat.com (x_refsource_REDHAT, issue-tracking, Issue Tracking, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-13208?
- CVE-2026-13208 is a medium-severity vulnerability in Kubevirt, classified under Improper Authentication. CVSS score: 6.5/10. Published 2026-06-24.
- How severe is CVE-2026-13208?
- Medium severity. CVSS v3 base score is 6.5 out of 10.