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'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.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.0 / Impact : 4.0

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope CHANGED

References

Link	Resource
https://access.redhat.com/security/cve/CVE-2026-13208	Mitigation Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2492220	Issue Tracking Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:kubevirt:kubevirt:-:::::kubernetes::
	cpe:2.3:a:redhat:openshift_virtualization::::::::

History

No history.

Information

Published : 2026-06-24 21:16

Updated : 2026-07-06 17:51

NVD link : CVE-2026-13208

Mitre link : CVE-2026-13208

CVE.ORG link : CVE-2026-13208

JSON object : View

Products Affected

kubevirt

kubevirt

redhat

openshift_virtualization

CWE

CWE-287

Improper Authentication

{"id": "CVE-2026-13208", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-13208", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-06-25T15:32:58.431125Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "secalert@redhat.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 4.0, "exploitabilityScore": 2.0}]}, "affected": [{"source": "secalert@redhat.com", "affectedData": [{"cpes": ["cpe:/a:redhat:container_native_virtualization:4"], "vendor": "Red Hat", "product": "Red Hat OpenShift Virtualization 4", "packageName": "container-native-virtualization/virt-handler", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:container_native_virtualization:4"], "vendor": "Red Hat", "product": "Red Hat OpenShift Virtualization 4", "packageName": "container-native-virtualization/virt-handler-rhel9", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "defaultStatus": "affected"}]}], "published": "2026-06-24T21:16:52.547", "references": [{"url": "https://access.redhat.com/security/cve/CVE-2026-13208", "tags": ["Mitigation", "Vendor Advisory"], "source": "secalert@redhat.com"}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492220", "tags": ["Issue Tracking", "Vendor Advisory"], "source": "secalert@redhat.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "secalert@redhat.com", "description": [{"lang": "en", "value": "CWE-287"}]}], "descriptions": [{"lang": "en", "value": "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'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."}], "lastModified": "2026-07-06T17:51:17.760", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:kubevirt:kubevirt:-:*:*:*:*:kubernetes:*:*", "vulnerable": true, "matchCriteriaId": "06AF9668-6158-47F4-A755-0EE4D5F7F413"}, {"criteria": "cpe:2.3:a:redhat:openshift_virtualization:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5301905C-9B5C-479F-A69A-659C6CB3AA42", "versionEndIncluding": "4.22.0", "versionStartIncluding": "4"}], "operator": "OR"}]}], "sourceIdentifier": "secalert@redhat.com"}