Description
An Improper Input Validation vulnerability exists in the user websocket handler of MAAS. An authenticated, unprivileged attacker can intercept a user.update websocket request and inject the is_superuser property set to true. The server improperly validates this input, allowing the attacker to self-promote to an administrator role. This results in full administrative control over the MAAS deployment.
CVSS Metrics
- Vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
- Attack Vector
- network
- Complexity
- low
- Privileges
- low
- User Action
- none
- Scope
- changed
- Confidentiality
- high
- Integrity
- none
- Availability
- none
- Weaknesses
- CWE-269NVD-CWE-noinfo
Metadata
- Primary Vendor
- CANONICAL
- Published
- 12/3/2025
- Last Modified
- 12/18/2025
- Source
- NIST NVD
- Note: Verify all details with official vendor sources before applying patches.
Affected Products
canonical : maascanonical : maascanonical : maascanonical : maas
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