In certain Red Hat packages for Grafana 6.x through 6.3.6, the configuration files /etc/grafana/grafana.ini and /etc/grafana/ldap.toml (which contain a secret_key and a bind_password) are world readable.
https://src.fedoraproject.org/rpms/grafana/c/fab93d67363eb0a9678d9faf160cc88237f26277
https://security.netapp.com/advisory/ntap-20200518-0004/
https://github.com/grafana/grafana/issues/8283