The mod_authz_svn Apache module for Subversion 1.0.4-r1 and earlier allows remote authenticated users, with write access to the repository, to read unauthorized parts of the repository via the svn copy command.
https://exchange.xforce.ibmcloud.com/vulnerabilities/16803
http://www.securityfocus.com/bid/10800
http://www.gentoo.org/security/en/glsa/glsa-200407-20.xml
http://svn.collab.net/repos/svn/tags/1.0.6/CHANGES