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SCA: security update for github.com/lxc/incus/v7/cmd/incusd (GHSA-4xg6-52mh-fpw8)

medium Tenable Cloud Security Plugin ID 443996

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - 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. (CVE-2026-48754)

Solution

Update the github.com/lxc/incus/v7/cmd/incusd library and its related packages to version 7.1.0 or later.

See Also

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

Plugin Details

Severity: Medium

ID: 443996

Version: Revision 1.3

Type: Local

Family: SCA Checks

Published: 6/26/2026

Updated: 8/24/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.66

Vendor

Vendor Severity: Low

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS Score Source: CVE-2026-48754

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: Medium

Base Score: 5.3

Threat Score: 2.1

Threat Vector: CVSS:4.0/E:P

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 6/26/2026

Vulnerability Publication Date: 6/26/2026

Reference Information

CVE: CVE-2026-48754

cwe: CWE-476