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9.9
CVE-2026-7374: KubeVirt virt-handler allows unauthorized access to host
CVE-2026-7374
Summary
An authenticated OpenShift user with edit permissions in a single namespace can access the host's Unix sockets and potentially gain full control of the node and the entire cluster. This is a serious issue, as it could allow an attacker to access sensitive information and take control of the system. Users should update their KubeVirt virt-handler component to the latest version to fix this vulnerability.
Original title
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 w...
Original description
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.
nvd CVSS3.1
9.9
Vulnerability type
CWE-59
Link Following
Published: 26 May 2026 · Updated: 28 May 2026 · First seen: 26 May 2026