Users in JBoss Management Security Realms must be in the appropriate role.

Security realms are a series of mappings between users and passwords and users and roles. There are 2 JBoss security realms provided by default; they are "management realm" and "application realm". Management realm stores authentication information for the management API, which provides functionality for the web-based management console and the management command line interface (CLI). mgmt-groups.properties stores user to group mapping for the ManagementRealm but only when role-based access controls (RBAC) is enabled. If management users are not in the appropriate role, unauthorized access to JBoss resources can occur.