API Security Testing
— NestJS Secure Code Review
Manual validation and exploit-focused API Security Testing. We help NestJS Secure Code Review-based companies proactively secure their digital assets before attackers strike.
Free Scoping CallNestJS Secure Code Review delivery and security model
Source-code analysis for NestJS services across guards, interceptors, pipes, DTO validation, module boundaries, and service-to-service trust decisions.
Focus areas
- Guard and decorator authorization model
- DTO validation and class-transformer risk
- Provider, module, and dependency injection boundaries
- Queue, websocket, and microservice handler safety
Delivery notes
- Authorization findings show the controller, guard, and service path
- Missing validation is proven through data flow
- Remediation is written with NestJS patterns
Decision matrix
NestJS Secure Code Review is not just a service label; it states how each control is validated and which evidence is expected at closure.
| Control | Decision question | Validation | Expected evidence |
|---|---|---|---|
| Guard and decorator authorization model | Does Guard and decorator authorization model create real risk? | Validated against the relevant code, request, configuration, or runtime behavior in API Security Testing. | Authorization findings show the controller, guard, and service path |
| DTO validation and class-transformer risk | Does DTO validation and class-transformer risk create real risk? | Validated against the relevant code, request, configuration, or runtime behavior in API Security Testing. | Missing validation is proven through data flow |
| Provider, module, and dependency injection boundaries | Does Provider, module, and dependency injection boundaries create real risk? | Validated against the relevant code, request, configuration, or runtime behavior in API Security Testing. | Remediation is written with NestJS patterns |
| Queue, websocket, and microservice handler safety | Does Queue, websocket, and microservice handler safety create real risk? | Validated against the relevant code, request, configuration, or runtime behavior in API Security Testing. | Authorization findings show the controller, guard, and service path |
What if Guard and decorator authorization model fails?
Eresus maps this area to real user-flow or delivery-pipeline impact, so the finding is not left as a generic technical label.
What if DTO validation and class-transformer risk fails?
Eresus maps this area to real user-flow or delivery-pipeline impact, so the finding is not left as a generic technical label.
What if Provider, module, and dependency injection boundaries fails?
Eresus maps this area to real user-flow or delivery-pipeline impact, so the finding is not left as a generic technical label.
Proof-Driven Methodology
Surface Discovery
Attack surface mapping & asset enumeration
Advanced Testing
Penetration testing beyond automated scanners
Proven Exploitation
PoC validation for every finding
Solution-Driven Delivery
Remediation code + free retest
Frequently Asked Questions
What decision does NestJS Secure Code Review clarify?
NestJS Secure Code Review clarifies exploitability, affected workflows, and release impact for API Security Testing with evidence rather than scanner noise.
What evidence is included in NestJS Secure Code Review?
Authorization findings show the controller, guard, and service path Also, Missing validation is proven through data flow. Retest criteria and ownership notes are included for closure.
How is this different from an automated scanner report?
Automated findings are not forwarded as-is; false positives are removed, abuse paths are proven, and remediation priority is explained.
Why Eresus Security?
Proof-Driven Reporting
Every finding is validated with a real exploit. No scanner noise — only proven risks.
Offensive Security Expertise
Specialized team in AI security, API pentesting, Red Team operations, and cloud security review.
Retest Support
Fixes are revalidated within the agreed engagement scope. Remediation guidance and developer-friendly notes are included.
Evidence-Ready Deliverables
Report format designed to support internal review, remediation tracking, and evidence-oriented workflows.
Related Service Areas
Validate Your Security Posture
Don't rely on scanner outputs. We execute the same techniques real attackers use — in a controlled environment, for you.
Get a Quote