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{"acknowledgement": "This issue was discovered by Sarah Bennert (Red Hat) and Stoyan Nikolov (Red Hat).", "bugzilla": {"description": "kubevirt: KubeVirt virt-handler: Privilege escalation and node compromise via symlink following vulnerability", "id": "2463728", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2463728"}, "csaw": false, "cvss3": {"cvss3_base_score": "9.9", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-59", "details": ["A flaw was found in KubeVirt's virt-handler component. This vulnerability allows an authenticated OpenShift user with edit permissions in a single namespace to exploit improper symlink validation when connecting to virtual machine console sockets. By replacing the console socket with a symlink to the host's container runtime (CRI-O) socket, an attacker can hijack virt-handler's privileged connection. This enables the attacker to access any Unix socket on the host, potentially leading to full control of the node and the entire cluster."], "mitigation": {"lang": "en:us", "value": "Update cluster RBAC to not allow exec into virt-launcher pods."}, "name": "CVE-2026-7374", "package_state": [{"cpe": "cpe:/a:redhat:container_native_virtualization:4", "fix_state": "Affected", "package_name": "container-native-virtualization/virt-handler-rhel9", "product_name": "Red Hat OpenShift Virtualization 4"}], "public_date": "2026-05-26T12:30:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-7374\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-7374"], "statement": "This is an Important privilege escalation flaw in KubeVirt's virt-handler component. An authenticated OpenShift user with edit permissions in a single namespace can exploit improper symlink validation to hijack virt-handler's privileged connection. This allows access to any Unix socket on the host, leading to potential full control of the node and the entire cluster.", "threat_severity": "Important"}

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