Does v0 add RLS when it creates Supabase tables?

v0's docs do not mention RLS. They say v0 can generate and execute SQL to create, update and drop tables. Check every table v0 creates and enable RLS where it is missing.

How does v0 protect my Supabase keys?

v0's security doc says only NEXT_PUBLIC_ variables reach the browser. v0 analyzes how you use them, warns about exposed tokens and can move code into Route Handlers or Server Actions.

Does Supahound work with v0's other databases?

No. v0 also offers Neon, Upstash and Vercel Blob through the Marketplace. Supahound monitors Supabase projects only, so it covers a v0 app whose data lives in Supabase.

v0 + Supabase

Monitor the Supabase database behind your v0 app

A v0 app gets Supabase through a one-click Vercel Marketplace integration, and v0 can generate and execute SQL that creates tables. Supabase turns RLS on automatically only for tables made in its Dashboard, so tables from v0's SQL start without it. Supahound's free daily scan finds those tables, and its paid detectors flag service-key misuse and cross-tenant reads in your traffic.

Last updated 2026-11-09

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v0 has a built-in Supabase integration.

What are the Supabase security risks in v0 apps?

Tables from v0-run SQL without RLS
For SQL integrations, v0 can create, update and drop tables itself. Supabase enables RLS automatically only for tables made in the Dashboard, and v0's docs do not mention RLS policies.
A secret key in a NEXT_PUBLIC_ variable
Next.js ships every NEXT_PUBLIC_ variable to the browser. v0 analyzes NEXT_PUBLIC_ usage and warns about exposed tokens, but a Supabase secret key given that prefix still ships to every visitor.
Server Actions that skip authorization
v0 can move code into Route Handlers or Server Actions. Code there that uses the secret key bypasses RLS, so each handler must confirm who is calling before it reads or writes.
Marketplace MCP tools during generation
Marketplace integrations can expose remote MCP tools to v0, set to Ask for Approval by default. v0 warns these give it access to tools that read or change external data, which can include your Supabase project.

How does Supahound protect your v0 app?

The free daily posture scan reports newly exposed tables and RLS coverage, so a table from v0's SQL shows up the next day.
The service-key detector flags the secret key used from a browser or a new network, the trace a NEXT_PUBLIC_ leak leaves.
The cross-tenant read detector flags a user who reaches other tenants' rows through a policy v0's SQL left too loose.
The free /hack-me scan checks your deployed v0 domain for Supabase keys in public JavaScript after you prove DNS ownership.

Frequently asked questions

Does v0 add RLS when it creates Supabase tables?: v0's docs do not mention RLS. They say v0 can generate and execute SQL to create, update and drop tables. Check every table v0 creates and enable RLS where it is missing.
How does v0 protect my Supabase keys?: v0's security doc says only NEXT_PUBLIC_ variables reach the browser. v0 analyzes how you use them, warns about exposed tokens and can move code into Route Handlers or Server Actions.
Does Supahound work with v0's other databases?: No. v0 also offers Neon, Upstash and Vercel Blob through the Marketplace. Supahound monitors Supabase projects only, so it covers a v0 app whose data lives in Supabase.

Watch your v0 app's Supabase traffic

Connect your Supabase org read-only. The free posture scan runs in minutes. No credit card.

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Sources

Checked on 2026-11-09. Products change; check each source for current details.