Spring Framework versions 3.0.0 to 3.0.5 and Spring Security versions 2.0.0 to 2.0.6 and 3.0.0 to 3.0.5 suffer from serialization issues. Several issues have been reported which may affect applications which de-serialize objects from an untrusted source such as a remote client. It is possible for a malicious client to inject undesirable behavior into the server by serializing proxies rather than specific class instances, or by taking advantage of internal AOP interfaces which were being exposed through the remote service, in addition to the service interface.
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