CVE-2026-48755

Incus has an argument injection in backup compression algorithm leading to AFW and ACE

Published Aug 21, 2026 CVSS 3.1 · 9.9 Critical EPSS < 1% KEV · Not listed
Description
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

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DSA Debian DSA DSA-6370-1 incus security update
Debian DSA Debian DSA DSA-6373-1 lxd security update
Github GHSA Github GHSA GHSA-v6mj-8pf4-hhw4 Incus has an argument injection in backup compression algorithm leading to AFW and ACE
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Lxc
Lxc incus
Vendors & Products Lxc
Lxc incus
Type Values Removed Values Added
Description 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.
Title Incus has an argument injection in backup compression algorithm leading to AFW and ACE
Weaknesses CWE-20
References
Metrics cvssV3_1

{'score': 9.9, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Nov 5, 2026, 11:36 PM
Reserved
May 22, 2026, 7:39 PM
Status
Deferred
Published
Aug 21, 2026, 3:16 PM
Modified
Nov 6, 2026, 1:17 AM
Severity
Critical
Public date
Aug 21, 2026, 2:37 PM