DaoAuthenticationProvider in VMware SpringSource Spring Security before 2.0.8, 3.0.x before 3.0.8, and 3.1.x before 3.1.3 does not check the password if the user is not found, which makes the response delay shorter and might allow remote attackers to enumerate valid usernames via a series of login requests.

CRLF injection vulnerability in the logout functionality in VMware SpringSource Spring Security before 2.0.7 and 3.0.x before 3.0.6 allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via the spring-security-redirect parameter.

Spring Framework 3.0.0 through 3.0.5, Spring Security 3.0.0 through 3.0.5 and 2.0.0 through 2.0.6, and possibly other versions deserialize objects from untrusted sources, which allows remote attackers to bypass intended security restrictions and execute untrusted code by (1) serializing a java.lang.Proxy instance and using InvocationHandler, or (2) accessing internal AOP interfaces, as demonstrated using deserialization of a DefaultListableBeanFactory instance to execute arbitrary commands via the java.lang.Runtime class.

VMware SpringSource Spring Security 2.x before 2.0.6 and 3.x before 3.0.4, and Acegi Security 1.0.0 through 1.0.7, as used in IBM WebSphere Application Server (WAS) 6.1 and 7.0, allows remote attackers to bypass security constraints via a path parameter.