CentOS Errata and Security Advisory 2008:0988 Important https://rhn.redhat.com/errata/RHSA-2008-0988.html
The following updated files have been uploaded and are currently syncing to the mirrors:
x86_64: libxml2-2.6.16-12.6.i386.rpm libxml2-2.6.16-12.6.x86_64.rpm libxml2-devel-2.6.16-12.6.x86_64.rpm libxml2-python-2.6.16-12.6.x86_64.rpm
src: libxml2-2.6.16-12.6.src.rpm