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In an untrusted JMS environment, the `MappingJackson2MessageConverter` and `JacksonJsonMessageConverter` classes allow arbitrary class instantiation. This can lead to unauthorized actions through gadget class deserialization, a process where specially crafted data is used to trigger the execution of existing code sequences within the application to achieve malicious goals.

Various `FilterExpressionConverter` implementations fail to properly escape keys and values when translating filter expression objects into specific vector store query languages. This improper escaping allows for query injection, which can enable attackers to alter vector store queries, potentially leading to data exposure and tampering.