In Apache Log4j 2.x before 2.8.2, when using the TCP socket server or UDP socket server to receive serialized log events from another application, a specially crafted binary payload can be sent that, when deserialized, can execute arbitrary code.
A flaw was found in Spring Security in combination with Spring Framework versions prior to 5.0.6 contains an authorization bypass when using method security. An unauthorized malicious user can gain unauthorized access to methods that should be restricted.
References: https://pivotal.io/security/cve-2018-1258