The mod_security2 module before 2.7.0 for the Apache HTTP Server allows remote attackers to bypass rules, and deliver arbitrary POST data to a PHP application, via a multipart request in which an invalid part precedes the crafted data.
http://www.openwall.com/lists/oss-security/2012/10/18/14
http://lists.opensuse.org/opensuse-updates/2013-08/msg00031.html
http://lists.opensuse.org/opensuse-updates/2013-08/msg00025.html
http://lists.opensuse.org/opensuse-updates/2013-08/msg00020.html
http://lists.fedoraproject.org/pipermail/package-announce/2012-November/093011.html