CVE-2026-48755

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

State: Published
Severity: 9.9 Critical
Published: Aug 21, 2026
Updated: Aug 21, 2026
Reserved: May 22, 2026

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.

Scores

CVSS	Score	Vector	Source
3.1	9.9 Critical	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H	GitHub_M

Weaknesses

CWE-20 Improper Input Validation

Affected Products

Product	Versions
incuslxc	< 7.2.0Affected

References

https://github.com/lxc/incus/security/advisories/GHSA-v6mj-8pf4-hhw4

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