Spring Security with Spring Boot Actuator: the authorization model that survived the incident

📰 Dev.to · Juan Torchia

Learn how to secure Spring Boot Actuator endpoints with a custom authorization model using Spring Security

intermediate Published 12 May 2026
Action Steps
  1. Configure a custom SecurityFilterChain to lock down Actuator endpoints
  2. Create separate health groups for different endpoint types
  3. Assign roles to specific endpoints such as /metrics and /env
  4. Validate the authorization model using curl commands
  5. Implement explicit validation for each endpoint
Who Needs to Know This

Developers and DevOps teams can benefit from this article to improve the security of their Spring Boot applications

Key Insight

💡 Locking down Actuator endpoints requires a custom authorization model with explicit SecurityFilterChain and role-based access control

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Secure your Spring Boot Actuator endpoints with a custom authorization model using Spring Security!

Key Takeaways

Learn how to secure Spring Boot Actuator endpoints with a custom authorization model using Spring Security

Full Article

Locking down Actuator endpoints isn't enough. After the incident, I rebuilt the authorization model from scratch: explicit SecurityFilterChain, separate health groups, roles for /metrics and /env, and real validation with curl. This is what's still standing.
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