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CVE-2026-13622

8.8 Élevée

Publiée le 12/08/2026 à 23:17 · Modifiée le 21/09/2026 à 19:17 · En attente d'analyse NVD · Source : secalert@redhat.com

Description

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/<pid>/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.

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Produits concernés

Scores CVSS

VersionScoreSourceVecteur
3.1 8.8 Élevée secalert@redhat.com CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Faiblesses (CWE)

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