VTK uses old version of libxml2 (containing security vulnerabilities); should update

This issue was created automatically from an original Mantis Issue. Further discussion may take place here.

As of 2008-01-22 the latest version of libxml2 is 2.6.31. See http://xmlsoft.org/news.html

VTK includes 2.6.27 according to CMakeLists.txt.

A quick search of the Common Vulnerabilities and Exposures (CVE) database reveals that a security fix has since been made:

VTK should update.