CVE-2026-13434

A flaw was found in KubeVirt's network annotation generator. When a tenant creates a VirtualMachineInstance with a Multus network configuration, the supplied networkName value is written verbatim into the launcher pod's v1.multus-cni.io/default-network annotation without format validation or...

CVE-2026-13434 Virt-controller-rhel9: kubevirt: kubevirt: multus default-network annotation injection via unvalidated tenant networkname when externalnetresourceinjection is enabled

A flaw was found in KubeVirt's network annotation generator. When a tenant creates a VirtualMachineInstance with a Multus network configuration, the supplied networkName value is written verbatim into the launcher pod's v1.multus-cni.io/default-network annotation without format validation or...

CVE-2026-13434

CVE-2026-13434 affects KubeVirt’s network annotation generator used when provisioning VirtualMachineInstance with Multus networks. The flaw writes the supplied networkName verbatim into the v1.multus-cni.io/default-network annotation without format validation or sanitization, with only an empty-s...

EUVD-2026-39796

A flaw was found in KubeVirt's network annotation generator. When a tenant creates a VirtualMachineInstance with a Multus network configuration, the supplied networkName value is written verbatim into the launcher pod's v1.multus-cni.io/default-network annotation without format validation or...

CVE-2026-13434

A flaw was found in KubeVirt's network annotation generator. When a tenant creates a VirtualMachineInstance with a Multus network configuration, the supplied networkName value is written verbatim into the launcher pod's v1.multus-cni.io/default-network annotation without format validation or...

CVE-2026-13325

A flaw was found in KubeVirt's migration proxy. When spec.configuration.migrations.disableTLS is set to true on the KubeVirt custom resource, the target virt-handler binds a plain TCP listener on all interfaces 0.0.0.0/:: on a random port with no authentication, peer allow-list, or handshake toke...

CVE-2026-13325

A flaw was found in KubeVirt's migration proxy. When spec.configuration.migrations.disableTLS is set to true on the KubeVirt custom resource, the target virt-handler binds a plain TCP listener on all interfaces 0.0.0.0/:: on a random port with no authentication, peer allow-list, or handshake toke...

EUVD-2026-39645

A flaw was found in KubeVirt's migration proxy. When spec.configuration.migrations.disableTLS is set to true on the KubeVirt custom resource, the target virt-handler binds a plain TCP listener on all interfaces 0.0.0.0/:: on a random port with no authentication, peer allow-list, or handshake toke...

CVE-2026-13325 Virt-handler-rhel9: kubevirt: kubevirt: disabletls migration setting removes authentication, exposing unauthenticated virtqemud proxy on all interfaces

A flaw was found in KubeVirt's migration proxy. When spec.configuration.migrations.disableTLS is set to true on the KubeVirt custom resource, the target virt-handler binds a plain TCP listener on all interfaces 0.0.0.0/:: on a random port with no authentication, peer allow-list, or handshake toke...

CVE-2026-13325

The CVE-2026-13325 issue affects KubeVirt’s migration proxy. When spec.configuration.migrations.disableTLS is set to true, the target virt-handler binds a plain TCP listener on all interfaces (0.0.0.0/::) on a random port with no authentication, peer allow-list, or handshake token. This listener ...

EUVD-2026-39594

A flaw was found in KubeVirt's virt-handler network cache handling. The WriteToCachedFile function writes data to a launcher-rooted path using os.WriteFile and os.Chown without symlink protection. A user with access to the virt-launcher container can plant a symlink at the cache file path, causin...

EUVD-2026-39595

A server-side request forgery SSRF flaw was found in KubeVirt's virt-api port-forward handler. When processing a port-forward request to a VirtualMachineInstance VMI, virt-api reads the target IP from vmi.Status.Interfaces0.IP and passes it directly to net.Dial without validation. For VMIs using...

CVE-2026-13322

A flaw was found in KubeVirt's downward metrics virtio-serial server. The server reads guest requests using textproto.Reader.ReadLine, which buffers input indefinitely until a newline character is received, with no length limit or read deadline. A user with access to a VM guest that has the...

CVE-2026-13318

A server-side request forgery SSRF flaw was found in KubeVirt's virt-api port-forward handler. When processing a port-forward request to a VirtualMachineInstance VMI, virt-api reads the target IP from vmi.Status.Interfaces0.IP and passes it directly to net.Dial without validation. For VMIs using...

CVE-2026-13322

CVE-2026-13322 affects KubeVirt, specifically the virt-handler on RHEL9, where the downward metrics virtio-serial server uses textproto.Reader.ReadLine() to read guest requests. The read is unbounded: there is no maximum length or read deadline, so a user with access to a VM guest can send an ong...

EUVD-2026-39599

A flaw was found in KubeVirt's downward metrics virtio-serial server. The server reads guest requests using textproto.Reader.ReadLine, which buffers input indefinitely until a newline character is received, with no length limit or read deadline. A user with access to a VM guest that has the...

CVE-2026-13318

KubeVirt exposes an SSRF in virt-api port-forward: when handling a port-forward to a VirtualMachineInstance, virt-api reads vmi.Status.Interfaces[0].IP and dials it without validation. For VMIs using non-masquerade networks (bridge or secondary-only), this IP is supplied by the in-guest QEMU agen...

CVE-2026-13218 Kubevirt: kubevirt: symlink following in writetocachedfile allows host file overwrite from virt-launcher

A flaw was found in KubeVirt's virt-handler network cache handling. The WriteToCachedFile function writes data to a launcher-rooted path using os.WriteFile and os.Chown without symlink protection. A user with access to the virt-launcher container can plant a symlink at the cache file path, causin...

CVE-2026-13218

CVE-2026-13218 : In KubeVirt, the virt-handler network cache handling allows a symlink attack via WriteToCachedFile, which writes to a launcher-rooted path with os.WriteFile and os.Chown. A user inside the virt-launcher container can place a symlink at the cache path, causing virt-handler to foll...

CVE-2026-13218

A flaw was found in KubeVirt's virt-handler network cache handling. The WriteToCachedFile function writes data to a launcher-rooted path using os.WriteFile and os.Chown without symlink protection. A user with access to the virt-launcher container can plant a symlink at the cache file path, causin...