Insecure management interface

Springboot-Actuator

Actuator endpoints let you monitor and interact with your application. Spring Boot includes a number of built-in endpoints and lets you add your own. For example, the health endpoint provides basic application health information. Some of them contains sensitive info such as :

/trace (by default the last 100 HTTP requests with headers)
/env (the current environment properties)
/heapdump (builds and returns a heap dump from the JVM used by our application).

These endpoints are enabled by default in Springboot 1.X. Since Springboot 2.x only /health and /info are enabled by default.

References

Springboot - Official Documentation