CVE-2026-55621 — HIGH (7.7)

Vulnerability Description

Incus is a system container and virtual machine manager. Prior to version 7.2.0, missing authorization checks exist for custom volume copying where an attacker knowing the name of a project that they don't have access to and the name of a custom volume in that project can copy the custom volume to a new project. This issue could allow an attacker to access secrets in custom volumes they are not authorized to access. Version 7.2.0 patches the issue.

CVSS Score

7.7

HIGH

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality

HIGH

Integrity

NONE

Availability

NONE

Related Weaknesses (CWE)

CWE-284

References

https://github.com/lxc/incus/security/advisories/GHSA-64f3-v33m-w89f

FAQ

What is CVE-2026-55621?

CVE-2026-55621 is a vulnerability with a CVSS score of 7.7 (HIGH). Incus is a system container and virtual machine manager. Prior to version 7.2.0, missing authorization checks exist for custom volume copying where an attacker knowing the name of a project that they ...

How severe is CVE-2026-55621?

CVE-2026-55621 has been rated HIGH with a CVSS base score of 7.7/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-55621?

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