Authorization Check Bypass in Incus System Container Manager
CVE-2026-55622

7.7HIGH

Key Information:

Vendor

Lxc

Status
Incus
Vendor
CVE Published:
21 August 2026

What is CVE-2026-55622?

Prior to version 7.2.0, the Incus system container and virtual machine manager was found to have a significant vulnerability involving missing authorization checks during the instance copying process. This flaw enabled an attacker, who knew the name of an inaccessible project and an instance within it, to duplicate the instance to a project they could access. Consequently, this vulnerability could lead to unauthorized access to sensitive information stored within those instances. The issue has been resolved in version 7.2.0, emphasizing the importance of keeping software up-to-date to mitigate such risks.

Affected Version(s)

incus < 7.2.0

References

https://github.com/lxc/incus/security/advisories/GHSA-c9f...
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CVSS V3.1

Score:
7.7
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.