CVE-2026-13622
CVE-2026-13622: 1 tracked advisory record across Red Hat. Compare vendor sources and published fix guidance.
Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.
Vendor advisory comparison
Red Hat
1 advisory- Advisory severityHigh8.8
High [CVE-2026-13622] virt-handler migration proxy follows symlinks allowing container escape to host
CVE-2026-13622Source published Source updated
A symlink following vulnerability was found in KubeVirt's virt-handler migration proxy. During live migration, virt-handler dials Unix sockets inside the target virt-launcher pod via /proc//root/ paths using net. Dial() without symlink protection. These socket paths reside in qemu-owned directories writable by the virt-launcher user. An attacker with namespace edit and pods/exec permissions can replace a migration proxy socket with a symlink to the host CRI-O socket. Because virt-handler runs as root in the host mount namespace, absolute symlink targets resolve against the host filesystem, and the bidirectional io.Copy proxy relays attacker-controlled bytes to the container runtime, enabling full node compromise. Red Hat has rated this vulnerability as Important impact. The vulnerable…
- Affected products in this advisory
- Red Hat Container Native Virtualization 4.12
- Red Hat Container Native Virtualization 4.13
- Red Hat Container Native Virtualization 4.14
- Red Hat Container Native Virtualization 4.15
6 more entries in the full advisory.
- Source-reported affected versions
- Affected-version details not available in this record.
- Source-reported fixed versions
- container-native-virtualization/virt-handler:1785837722
- container-native-virtualization/virt-handler-rhel9:1786346596
- container-native-virtualization/virt-handler-rhel9:1786309624
- container-native-virtualization/virt-handler-rhel9:1786347656
18 more entries in the full advisory.
- Mitigation guidance
- Restrict pods/exec permissions in namespaces that run virtual machines. The pods/exec RBAC permission is required for the attack — removing it from VM operator roles prevents exploitation. Additionally, enable Kubernetes audit logging and monitor for kubectl exec commands targeting virt-launcher pods, especially during live migration events.
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