Your Next.js app.
More than a frontend.
Next.js isn't just a rendering layer. It usually carries middleware, auth, handlers, edge logic, API routes, and everything you ship in the public bundle. This audit checks whether security rests on real controls — or on implicit framework assumptions.
What we verify
Middleware and access control
Private pages, redirects, edge logic, possible bypasses, and over-reliance on a single checkpoint.
Route Handlers and auth flows
Internal endpoints, callbacks, reset flows, magic links, tokens, sessions, and the server-side logic reachable from outside.
Bundles, chunks, and source maps
Internal routes, endpoints, public env vars, back-office paths, admin logic, and implementation details that leak through the JavaScript you ship.
Integrations around the app
APIs, webhooks, analytics, automations, third-party services, and adjacent components that widen the application surface.
What we often find
Auth leaning too hard on middleware
The frontend is filtered, but handlers, callbacks, and internal routes stay too trusting on the server side.
A client bundle that says too much
Public chunks hand any visitor admin routes, internal URLs, IDs, data models, or webhook endpoints.
Sensitive actions triggered from the browser
Creates, updates, exports, and automations still start too close to the client, with weak guardrails on the server.
A bigger API surface than the team expects
Route Handlers, integrations, and support endpoints expose more application logic than anyone realized.
Ideal for
- Full-stack Next.js apps with auth, a dashboard, a back-office, or client portal behavior
- Stacks where Next.js carries middleware, handlers, and part of access control
- Products built fast, with lots of third-party integrations and logic pushed to the frontend
- Teams that want to review the app exactly as it runs in production
Related reads and pages
Next.js and CVE-2025-29927
The case that put middleware back at the center of the security conversation.
Server Components security mistakes
Modern-stack patterns that quietly put too much trust in framework behavior.
API & webhook audit
A strong companion when your Next.js app exposes business routes or callbacks.
Passive audit methodology
How we read a Next.js app from the outside without turning it into an intrusive pentest.