In some situations, subversion metadata may be unexpectedly
disclosed via WebDAV. A subversion advisory states:
mod_authz_svn, the Apache httpd module which does path-based
authorization on Subversion repositories, is not correctly
protecting all metadata on unreadable paths.
This security issue is not about revealing the contents
of protected files: it only reveals metadata about
protected areas such as paths and log messages. This may
or may not be important to your organization, depending
on how you're using path-based authorization, and the
sensitivity of the metadata.