Apache Tomcat Improper Limitation of a Pathname to a Restricted Directory (Path Traversal) Vulnerability - CVE-2008-2370
Apache Tomcat 4.1.0 through 4.1.37 5.5.0 through 5.5.26 and 6.0.0 through 6.0.16 when a RequestDispatcher is used performs path normalization before removing the query string from the URI which allows remote attackers to conduct directory traversal attacks and read arbitrary files via a .. (dot dot) in a request parameter.