Isn't elasticsaerch and redis the same? You can access the data just by going to the port of the service?

Both Elastic and Redis have authentication and authorization mechanisms that can prevent unauthorized modifications to the data. Redis can only have the configuration changed via config file, where Elastic can be modified via API but only with the correct credentials.

The remote-management of Gluster never built any security around that feature so you can CRUD volumes as any unprivileged user that's attached to the network.

Fair enough, I know that MongoDB had their fare share of issues because of the default no authentication setup so it would be nice to have the option in gluster.