CVE-2026-48755 — CRITICAL (9.9)

Vulnerability 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 Score

9.9

CRITICAL

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Related Weaknesses (CWE)

CWE-20

References

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

FAQ

What is CVE-2026-48755?

CVE-2026-48755 is a vulnerability with a CVSS score of 9.9 (CRITICAL). 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 comman...

How severe is CVE-2026-48755?

CVE-2026-48755 has been rated CRITICAL with a CVSS base score of 9.9/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2026-48755?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.