Graeme Colman of Red Hat reported a sensitive data exposure flaw in Apache Zookeeper. An admin user's password appeared in plaintext in binary log files. A local user could read this information and use it to gain administrative access to the application.

Update 2018-08-06:

JBoss Fuse did not enable encrypted passwords by default in its usage of Apache Zookeeper. This permitted sensitive information disclosure via logging to local users. This issue is a vulnerability in JBoss Fuse's usage of Apache Zookeeper, not in Zookeeper itself as was previously stated.