OpenDJ is a directory server which implements a wide range of Lightweight Directory Access Protocol and related standards, including full compliance with LDAPv3 but also support for Directory Service Markup Language (DSMLv2).[1] Written in Java, OpenDJ offers multi-master replication, access control, and many extensions.
ForgeRock's DS/OpenDJ Security Advisory #201706 notes that a vulnerability that also affects the OpenDJ 2.6.4 Community Edition has been discovered.