---
id: CVE-2026-48755
title: Incus is a system container and virtual machine manager
summary: >-
  Incus is a system container and virtual machine manager. Prior to version
  7.1.0, improper validation of user-provided backup compression algorithm leads
  to argument injection in the constructed command line. This leads to an
  arbitrary fi…
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-20
vendor: lxc
product: github.com/lxc/incus/v7/cmd/incusd
affected:
  - github.com/lxc/incus/v7/cmd/incusd < 7.2.0
patched:
  - github.com/lxc/incus/v7/cmd/incusd 7.2.0
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-2026-48755'
references:
  - url: 'https://github.com/lxc/incus/security/advisories/GHSA-v6mj-8pf4-hhw4'
    label: security-advisories@github.com
  - url: 'https://github.com/advisories/GHSA-v6mj-8pf4-hhw4'
tags:
  - nvd
  - ghsa
  - go
epss: 0.00731
epssPercentile: 0.5226
ecosystem: go
ingestedAt: '2026-06-29T13:24:35.285Z'
---

## Overview

Incus is a system container and virtual machine manager. Prior to version 7.1.0, improper validation of user-provided backup compression algorithm leads to argument injection in the constructed command line. This leads to an arbitrary file write on the host, possibly leading to arbitrary command execution. Version 7.1.0 patches the issue.

## Remediation

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

## Package advisory (CVE-2026-48755)

Affected packages:

- `github.com/lxc/incus/v7/cmd/incusd < 7.2.0`

Patched in:

- `github.com/lxc/incus/v7/cmd/incusd 7.2.0`

Source: https://github.com/advisories/GHSA-v6mj-8pf4-hhw4