IBM WebSphere Application Server 7.0, 8.0, 8.5, and 9.0 could allow a remote attacker to traverse directories on the system. An attacker could send a specially-crafted URL request containing "dot dot" sequences (/../) to view arbitrary files on the system. IBM X-Force ID: 148686.
https://www.tenable.com/security/research/tra-2018-30
https://www.ibm.com/support/docview.wss?uid=ibm10729521