---
id: CVE-2026-48754
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, `(*backend).createDependentVolumesFromBackup` in
  `internal/server/storage/backend.go` contains a cluster of unguarded pointer
  derefs on every dependent-volu…
severity: low
cwe:
  - CWE-476
vendor: lxc
product: github.com/lxc/incus/v7/cmd/incusd
affected:
  - github.com/lxc/incus/v7/cmd/incusd < 7.1.0
patched:
  - github.com/lxc/incus/v7/cmd/incusd 7.1.0
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-2026-48754'
references:
  - url: 'https://github.com/lxc/incus/security/advisories/GHSA-4xg6-52mh-fpw8'
    label: security-advisories@github.com
  - url: 'https://github.com/lxc/incus/security/advisories/GHSA-4xg6-52mh-fpw8'
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
  - url: 'https://github.com/advisories/GHSA-4xg6-52mh-fpw8'
tags:
  - nvd
  - ghsa
  - go
epss: 0.00281
epssPercentile: 0.20854
ecosystem: go
ingestedAt: '2026-06-29T13:24:35.286Z'
---

## Overview

Incus is a system container and virtual machine manager. Prior to version 7.1.0, `(*backend).createDependentVolumesFromBackup` in `internal/server/storage/backend.go` contains a cluster of unguarded pointer derefs on every dependent-volume entry's `VolumeSnapshots[i]`, `Volume`, and `Pool` sub-fields. An authenticated user with `can_create_instances` permission on any project can crash the `incusd` daemon by uploading an instance backup tarball whose `dependent_volumes[*]` block contains a nil snapshot pointer (or omits `volume:` / `pool:`). This is a sibling-field variant of the 2026-05-04 batch fix `d768f81c0a1d985f35ae56219519822b080bf5e3` ("Properly check dependent volumes on import"). That commit added `if disk == nil` at the top of the outer loop, but did not guard the four sub-pointer fields the loop body dereferences naked. Version 7.1.0 contains an updated patch.

## Remediation

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

## Package advisory (CVE-2026-48754)

Affected packages:

- `github.com/lxc/incus/v7/cmd/incusd < 7.1.0`

Patched in:

- `github.com/lxc/incus/v7/cmd/incusd 7.1.0`

Source: https://github.com/advisories/GHSA-4xg6-52mh-fpw8