---
id: CVE-2026-63125
title: Incus is a system container and virtual machine manager
summary: >-
  Incus is a system container and virtual machine manager. Prior to version
  7.3.0, an unprivileged, project-confined Incus user (a non-admin TLS/RBAC
  identity with `can_create_images` and `can_create_instances`) can execute
  arbitrary code …
severity: critical
cvss: 9.9
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H'
cwe:
  - CWE-59
  - CWE-61
published: '2026-08-21'
updated: '2026-09-18'
sourceUpdated: '2026-09-18T20:09:01.757'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-63125'
references:
  - url: 'https://github.com/lxc/incus/security/advisories/GHSA-6rqx-22hc-qm36'
    label: security-advisories@github.com
  - url: 'https://github.com/lxc/incus/security/advisories/GHSA-6rqx-22hc-qm36'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
epss: 0.00664
epssPercentile: 0.49533
ingestedAt: '2026-09-18T20:51:25.654Z'
---

## Overview

Incus is a system container and virtual machine manager. Prior to version 7.3.0, an unprivileged, project-confined Incus user (a non-admin TLS/RBAC identity with `can_create_images` and `can_create_instances`) can execute arbitrary code as root on the host. A crafted image ships `backup.yaml` as a symlink to a host file. When the root daemon writes the instance's backup file, it follows the symlink. Version 7.3.0 patches the issue.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.