The Web Container in IBM WebSphere Application Server (WAS) 6.0 before 6.0.2.43, 6.1 before 6.1.0.31, and 7.0 before 7.0.0.11 does not properly handle long filenames and consequently sends an incorrect file in some responses, which allows remote attackers to obtain sensitive information by reading the retrieved file.
https://exchange.xforce.ibmcloud.com/vulnerabilities/58557
http://www.vupen.com/english/advisories/2010/1200
http://www.securityfocus.com/bid/40277
http://www-01.ibm.com/support/docview.wss?uid=swg27007951