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Vulnerability record · CVE-2026-48755 · published 21 August 2026

CVE-2026-48755: Improper input validation vulnerability

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.

9.9 CVSS 3.1 Critical EPSS 0.73% · top 47.6% CWE-20 · Improper input validation Deferred
9.9CVSS 3.1 base score
0.73%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
1References
18 Sep 2026Last modified by NVD

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.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

References

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

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Source: NIST National Vulnerability Database (record CVE-2026-48755), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.