HIGHVulnerability
Verified
Global

NVD HIGH: CVE-2026-13622 — A symlink following vulnerability was found in KubeVirt's virt-handler migration...

·Source: NIST NVD

Updated:

Executive Summary

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 ca

Analysis

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. CVSS Score: 8.8. Published: 2026-08-12T21:17:35.630.

Indicators of Compromise (1)

CVE (1)
CVE-2026-13622
NVDMITRE CVE
Source Attribution

Originally published by NIST NVD on Aug 12, 2026. Verified by: NIST.

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