This indicates an attack attempt against a Remote Code Execution vulnerability in Spring Cloud Function when using routing functionality.
The vulnerability is caused by improper handling of a crafted HTTP request. A remote authenticated attacker may be able to exploit this to execute arbitrary remote code within the context of the application, via a crafted HTTP request.
Spring Cloud Function versions 3.1.6, 3.2.2 and older unsupported versions
System Compromise: Remote attackers can gain control of vulnerable systems.
Apply the most recent upgrade or patch from the vendor.