IBM WebSphere Application Server (WAS) 6.0.x before 6.0.2.41, 6.1.x before 6.1.0.31, and 7.0.x before 7.0.0.11, when the -trace option (aka debugging mode) is enabled, executes debugging statements that print string representations of unspecified objects, which allows attackers to obtain sensitive information by reading the trace output.
https://exchange.xforce.ibmcloud.com/vulnerabilities/58323
http://www.vupen.com/english/advisories/2010/0994
http://www-01.ibm.com/support/docview.wss?uid=swg1PM12247