sql/event_data_objects.cc in MariaDB before 10.1.30 and 10.2.x before 10.2.10 and Percona XtraDB Cluster before 5.6.37-26.21-3 and 5.7.x before 5.7.19-29.22-3 allows remote authenticated users with SQL access to bypass intended access restrictions and replicate data definition language (DDL) statements to cluster nodes by leveraging incorrect ordering of DDL replication and ACL checking.
access.redhat.com/errata/RHSA-2019:1258
bugzilla.redhat.com/show_bug.cgi?id=1524234
github.com/MariaDB/server/commit/0b5a5258abbeaf8a0c3a18c7e753699787fdf46e
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ELCZV46WIYSJ6VMC65GMNN3A3QDRUJGK/
mariadb.com/kb/en/library/mariadb-10130-release-notes/
mariadb.com/kb/en/library/mariadb-10210-release-notes/
www.debian.org/security/2018/dsa-4341
www.percona.com/blog/2017/10/30/percona-xtradb-cluster-5-6-37-26-21-3-is-now-available/
www.percona.com/doc/percona-xtradb-cluster/LATEST/release-notes/Percona-XtraDB-Cluster-5.7.19-29.22-3.html