{"id":"CVE-2026-13208","title":"A flaw was found in KubeVirt's virt-handler domain notify server","summary":"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 connecti…","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H","cwe":["CWE-287"],"vendor":"kubevirt","product":"kubevirt","affected":["kubevirt","openshift_virtualization >= 4, <= 4.22.0"],"published":"2026-06-24","updated":"2026-07-06","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-13208","references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-13208","label":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2492220","label":"secalert@redhat.com"}],"tags":["nvd"],"epss":0.00126,"epssPercentile":0.02626,"ingestedAt":"2026-07-06T18:45:21.295Z","slug":"CVE-2026-13208","body":"## Overview\n\nA 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.\n\n## Affected\n\n- `kubevirt`\n- `openshift_virtualization >= 4, <= 4.22.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":36,"depthScoreParts":{"impact":35.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}