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Restricting Incoming Serialized Java Objects to Oracle WebLogic Server - New with WLS PSUs (Doc ID 2421487.1)

Last updated on NOVEMBER 05, 2023

Applies to:

Oracle WebLogic Server - Version 10.3.6 and later
Oracle WebCenter Content: Imaging - Version to [Release 12c]
Information in this document applies to any platform.
- This document was released with the WLS PSU for Oct 2018.
- This document is expected to be updated with newer PSU releases IF there is something new to communicate. Check back when applying the next PSU and JDK update for any updates.
- For example, January 2019 has an updated block list and updated serialFilterScope. July 2019 and 2020 added block listed items. New dates will be in bold.


This document provided information to help in restricting incoming serialized Java objects as part of a security best practice or hardening recommendation for Oracle WebLogic Server (WLS).


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In this Document
 Overview and Security Recommendations
 Restricting Incoming Serialized Java Objects to Oracle WebLogic Server
 JEP 290 JDK Support
 WebLogic Server JEP 290 Default Filter
 Customizing the WebLogic Server JEP 290 Default Filter

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