The `camel-hazelcast` component fails to apply a `JavaSerializationFilterConfig` to Hazelcast instances created through specific configuration paths. This occurs when `ReplicatedHazelcastAggregationRepository` overrides the `doStart()` function without calling the super method, and when `HazelcastDefaultComponent#getOrCreateHzClientInstance()` builds a `ClientConfig` while `hazelcastMode` is set to `client` without a referenced `ClientConfig` or `hazelcastConfigUri`. Consequently, Java deserialization remains unrestricted. An attacker capable of publishing data to the connected Hazelcast cluster can trigger the deserialization of a crafted Java object within the serialization layer, leading to remote code execution. This risk is heightened as Hazelcast clusters do not enable authentication or TLS by default.