Improper Input Validation Leading to Unauthorized Administrator Access in MAAS
CVE-2025-7044

7.7HIGH

Key Information:

Vendor

Ubuntu

Status
Vendor
CVE Published:
3 December 2025

What is CVE-2025-7044?

An improper input validation vulnerability exists in the user websocket handler of MAAS. Authenticated, unprivileged attackers can intercept a user.update websocket request and manipulate the 'is_superuser' property to assume administrative privileges. This vulnerability allows attackers to bypass normal access controls, resulting in unauthorized administrative access and complete control over the MAAS deployment.

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Affected Version(s)

MAAS Linux 3.3.0 < 3.3.11

MAAS Linux 3.4.0 < 3.4.9

MAAS Linux 3.5.0 < 3.5.9

References

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

Credit

Jacopo Rota
.