Why flag this if I'm already on middleware?

Because middleware-only means one bypass covers every route. The check fires only when the version is inside a known bypass band AND no route-level check exists — defense in depth silences it.

How do I know which versions are affected?

The finding names the advisory and the patched floor per major version, from a pinned list curated by DevMeth — no feed to configure.

Upgrade Next.js past the patched floor and add route-level session checks in your API handlers so access control doesn't hinge on one framework-managed file.

C36

Dependencies

Framework CVE Check — Is Your Auth Gate the Part With the Bypass?

DevMeth checks the 48 known AI-code failure patterns — not a penetration test or a security guarantee.

What the issue is

Running a framework version with a known auth-bypass CVE while middleware is your only access control means a single spoofed request reaches every protected route anonymously — the gate and the vulnerability are the same file.

Why AI tools generate it

AI-built apps concentrate authorization in middleware because it is one file and the demo works; when a framework bypass lands, there is no second line to fall back on.

How DevMeth detects it

A code scan compares your pinned framework version against a curated advisory list (deterministic, no external feed) and flags versions inside a bypass band when no route-level session check exists anywhere.

C36

What a finding looks like

Critical

Your framework version has a known auth bypass — and your only gate is the thing it bypasses

WHAT WE FOUND

C36 — masked sample

Sample — illustrative and masked exactly as a real report shows it. Run a free scan to see your own results.

The fix, in three steps

Upgrade past the patched version for the advisory, and add session checks inside data-touching routes so middleware stops being your only gate. Three steps.

Run a free scan and each finding carries a paste-ready fix prompt you can act on.

Try a free scan

FAQ

DevMeth checks the 48 known AI-code failure patterns — not a penetration test or a security guarantee. A clear result means each known pattern was checked and found clear or not applicable for your app; it is not a guarantee of security.