Apache Camel's camel-jackson and camel-jacksonxml components are vulnerable to Java object de-serialisation vulnerability. Camel allows to specify such a type through the 'CamelJacksonUnmarshalType' property. De-serializing untrusted data can lead to security flaws as demonstrated in various similar reports about Java de-serialization issues.
Mitigation: 2.16.x users should upgrade to 2.16.5, 2.17.x users should upgrade to 2.17.5, 2.18.x users should upgrade to 2.18.2.
The JIRA tickets: https://issues.apache.org/jira/browse/CAMEL-10567 and https://issues.apache.org/jira/browse/CAMEL-10604 refers to the various commits that resovoled the issue, and have more details.
Apache Camel's Validation Component is vulnerable against SSRF via remote DTDs and XXE.