The system.temporary route in Drupal 8.x before 8.1.10 does not properly check for “Export configuration” permission, which allows remote authenticated users to bypass intended access restrictions and read a full config export via unspecified vectors.
www.securityfocus.com/bid/93101
www.securitytracker.com/id/1036886
github.com/drupal/core
github.com/FriendsOfPHP/security-advisories/blob/master/drupal/core/CVE-2016-7572.yaml
github.com/FriendsOfPHP/security-advisories/blob/master/drupal/drupal/CVE-2016-7572.yaml
nvd.nist.gov/vuln/detail/CVE-2016-7572
www.drupal.org/SA-CORE-2016-004