### [CVE-2021-22097](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-22097) ![](https://img.shields.io/static/v1?label=Product&message=Spring%20AMQP&color=blue) ![](https://img.shields.io/static/v1?label=Version&message=Spring%20AMQP%20versions%202.2.X%20prior%20to%202.2.19%20and%202.3.x%20prior%20to%202.3.11%20.%20&color=brightgreen) ![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-502%3A%20Deserialization%20of%20Untrusted%20Data&color=brightgreen) ### Description In Spring AMQP versions 2.2.0 - 2.2.18 and 2.3.0 - 2.3.10, the Spring AMQP Message object, in its toString() method, will deserialize a body for a message with content type application/x-java-serialized-object. It is possible to construct a malicious java.util.Dictionary object that can cause 100% CPU usage in the application if the toString() method is called. ### POC #### Reference No PoCs from references. #### Github - https://github.com/r00t4dm/r00t4dm