Multiple directory traversal vulnerabilities in the cssgen contrib module in GeSHi before 1.0.8.11 allow remote attackers to read arbitrary files via a .. (dot dot) in the (1) geshi-path or (2) geshi-lang-path parameter.
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=685324
http://www.openwall.com/lists/oss-security/2012/08/21/11
http://lists.fedoraproject.org/pipermail/package-announce/2013-May/105317.html
http://lists.fedoraproject.org/pipermail/package-announce/2013-May/105273.html
http://lists.fedoraproject.org/pipermail/package-announce/2013-May/105247.html