Directory Traversal Affecting kubevirt-virtctl package, versions <1.7.4-150700.3.36.1


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.16% (6th percentile)

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  • Snyk IDSNYK-SLES157-KUBEVIRTVIRTCTL-18765099
  • published14 Aug 2026
  • disclosed13 Aug 2026

Introduced: 13 Aug 2026

NewCVE-2026-13622  (opens in a new tab)
CWE-22  (opens in a new tab)

How to fix?

Upgrade SLES:15.7 kubevirt-virtctl to version 1.7.4-150700.3.36.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kubevirt-virtctl package and not the kubevirt-virtctl package as distributed by SLES. See How to fix? for SLES:15.7 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1