Undertow in Red Hat wildfly before version 11.0.0.Beta1 is vulnerable to a resource exhaustion resulting in a denial of service. Undertow keeps a cache of seen HTTP headers in persistent connections. It was found that this cache can easily exploited to fill memory with garbage, up to "max-headers" (default 200) * "max-header-size" (default 1MB) per active TCP connection.

Red Hat JBoss Enterprise Application Platform (JBEAP) 6.2.0 and JBoss WildFly Application Server, when run under a security manager, do not properly restrict access to the Modular Service Container (MSC) service registry, which allows local users to modify the server via a crafted deployment.