GHSA-4wrc-f8pq-fpqp

Pivotal Spring Framework contains unsafe Java deserialization methods

Pivotal Spring Framework before 6.0.0 suffers from a potential remote code execution (RCE) issue if used for Java deserialization of untrusted data. Depending on how the library is implemented within a product, this issue may or not occur, and authentication may be required. Maintainers recommend investigating alternative components or a potential mitigating control. Version 4.2.6 and 3.2.17 contain [enhanced documentation](https://github.com/spring-projects/spring-framework/commit/5cbe90b2cd91b866a5a9586e460f311860e11cfa) advising users to take precautions against unsafe Java deserialization, version 5.3.0 [deprecate the impacted classes](https://github.com/spring-projects/spring-framework/issues/25379) and version 6.0.0 [removed it entirely](https://github.com/spring-projects/spring-framework/issues/27422).