---
id: CVE-2026-115377
title: >-
  Incus before 6.0.7, 6.1.0 before 7.0.2, and 7.1.0 before 7.5.0 Arbitrary File
  Write via Symlink in Migration Stream
summary: >-
  Incus before 6.0.7, 6.1.0 before 7.0.2, and 7.1.0 before 7.5.0 contains an
  arbitrary file write vulnerability that allows malicious migration sources to
  write host files by planting symlinks in transferred volumes. Attackers can
  craft rs…
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'
cvssSource: cna
cwe:
  - CWE-59
vendor: lxc
product: incus
affected:
  - incus < 6.0.7
  - incus >= 6.1.0 < 7.0.2
  - incus >= 7.1.0 < 7.5.0
published: '2026-10-22'
updated: '2026-10-22'
sourceUpdated: '2026-10-22T19:13:46.305Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-115377'
references:
  - url: 'https://github.com/lxc/incus/security/advisories/GHSA-579w-c4rw-c8q3'
    label: GitHub Security Advisory (GHSA-579w-c4rw-c8q3)
  - url: >-
      https://www.vulncheck.com/advisories/incus-before-6.0.7-6.1.0-before-7.0.2-and-7.1.0-before-7.5.0-arbitrary-file-write-via-symlink-in-migration-stream
    label: >-
      VulnCheck Advisory: Incus before 6.0.7, 6.1.0 before 7.0.2, and 7.1.0
      before 7.5.0 Arbitrary File Write via Symlink in Migration Stream
tags:
  - cve.org
ingestedAt: '2026-10-22T22:00:50.402Z'
---

## Overview

Incus before 6.0.7, 6.1.0 before 7.0.2, and 7.1.0 before 7.5.0 contains an arbitrary file write vulnerability that allows malicious migration sources to write host files by planting symlinks in transferred volumes. Attackers can craft rsync or btrfs receive streams with a symlink such as rootfs pointing to the host root, writing files as root for full host compromise.

## Affected

- `incus < 6.0.7`
- `incus >= 6.1.0 < 7.0.2`
- `incus >= 7.1.0 < 7.5.0`

## Remediation

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