It was found in EAP 7 before 7.0.9 that properties based files of the management and the application realm configuration that contain user to role mapping are world readable allowing access to users and roles information to all the users logged in to the system.
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-12167
https://access.redhat.com/errata/RHSA-2018:0005
https://access.redhat.com/errata/RHSA-2018:0004
https://access.redhat.com/errata/RHSA-2018:0003
https://access.redhat.com/errata/RHSA-2018:0002
https://access.redhat.com/errata/RHSA-2017:3458
https://access.redhat.com/errata/RHSA-2017:3456
https://access.redhat.com/errata/RHSA-2017:3455