Apache Struts 2.0.0 through 2.3.24.1 does not properly cache method references when used with OGNL before 3.0.12, which allows remote attackers to cause a denial of service (block access to a web site) via unspecified vectors.Referenceshttp://struts.apache.org/docs/s2-034.htmlhttp://www.securityfocus.com/bid/90961http://www.securitytracker.com/id/1036018http://www-01.ibm.com/support/docview.wss?uid=swg21987854https://lists.apache.org/thread.html/940b4c3fef002461b89a050935337056d4a036a65ef68e0bbd4621ef%40%3Cdev.struts.apache.org%3E
