Camel: remote code execution via header field manipulation

Apache Camel before 2.9.7, 2.10.0 before 2.10.7, 2.11.0 before 2.11.2, and 2.12.0 allows remote attackers to execute arbitrary simple language expressions by including "$simple" in a CamelFileName message header to a 1 FILE or 2 FTP producer...