---
id: CVE-2026-48756
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).CreateCustomVolumeFromBackup` in
  `internal/server/storage/backend.go` contains an unguarded `*time.Time`
  dereference on the `ExpiresAt` field of…
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-2026-48756'
references:
  - url: 'https://github.com/lxc/incus/security/advisories/GHSA-xhqx-mgh3-3h7q'
    label: security-advisories@github.com
  - url: 'https://github.com/advisories/GHSA-xhqx-mgh3-3h7q'
tags:
  - nvd
  - ghsa
  - go
epss: 0.00382
epssPercentile: 0.29385
ecosystem: go
ingestedAt: '2026-06-29T13:24:35.284Z'
---

## Overview

Incus is a system container and virtual machine manager. Prior to version 7.1.0, `(*backend).CreateCustomVolumeFromBackup` in `internal/server/storage/backend.go` contains an unguarded `*time.Time` dereference on the `ExpiresAt` field of every volume-snapshot entry in an imported custom-volume backup. An authenticated user with `can_create_storage_volumes` permission on any project can crash the `incusd` daemon by uploading a backup tarball whose `volume_snapshots[*].expires_at` field is absent. This is a sibling-field variant of GHSA-r7w7-mmxr-47r9 (CVE-2026-40197). Commit `985a1dedf9f3e7ba729c93b654905ed510de25c2` added `if s == nil` at the top of the loop body, but did not guard the adjacent `*snapshot.ExpiresAt` deref 19 lines later. Every other consumer of `Config.VolumeSnapshots[i].ExpiresAt` in this same file already gates the deref with a nil-check — the asymmetric guard is the bug. 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-2026-48756)

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-xhqx-mgh3-3h7q