Rental-operations-platform/docs/phase14/SECURITY_REVIEW_REPORT_v1.0.md

Phase 14 Security Review

Implemented controls

• Strict allowlisted request and guard schemas with unknown-field rejection.
• POST-only route handler with JSON content-type enforcement.
• 16 KiB declared and measured request-size limits.
• Same-origin or approved-origin validation.
• Custom request marker to force non-simple cross-origin requests through browser preflight.
• Server-side enum, length, locale, source, and UUID validation.
• HTML rendering remains React-escaped; external errors are never rendered.
• Adapter calls are bounded by AbortController timeout.
• Duplicate transport is coalesced by idempotency key.
• Production secrets have no public environment variable.
• Local/test adapters are blocked in deployed production configuration.
• No raw request body, form value, vendor response, or stack trace is logged or returned.
• No external URL or redirect destination is active.

Deliberately unresolved

A production-grade distributed idempotency store, rate limiting, retry policy, CRM authentication, webhook verification, replay policy, vendor scopes, email-header defense, scheduler origin policy, and operational alerting depend on the selected service and architecture. They remain release gates rather than fake generic implementations.

Residual risk

The local in-memory idempotency coordinator is process-local and exists only to test the boundary. It is not suitable for horizontally scaled production. The honeypot is proportionate for local testing but is not a complete abuse control. Dynamic security testing, dependency audit, browser CSP validation, and penetration review remain open because dependencies and browsers could not be executed in this environment.