multi-tenant-safety-checker

Enforce tenant isolation by implementing Row Level Security policies across database tables and applying application-level tenant context middleware. This ensures strict query-level filtering and prevents data leakage between tenants in multi-tenant SaaS architectures.

Row Level Security is a PostgreSQL feature that restricts data access at the row level based on tenant context policies. You need it when building multi-tenant SaaS applications to prevent data leakage caused by insufficient tenant isolation or misconfigured query filters.

Audit RLS policies by running automated security test scripts that validate tenant isolation configurations. The regression test suite checks database-level RLS enforcement and application-level tenant context to identify any data leakage vulnerabilities across tenants.

Prisma works with PostgreSQL Row Level Security by combining database-level RLS policies with application-level tenant context middleware. This integration ensures that tenant filters are consistently applied to queries, maintaining strict isolation in multi-tenant environments.

Set up tenant context middleware at the application level to consistently apply tenant filters before queries reach the database. Combine this with PostgreSQL RLS policies and composite indexing guidance to enforce strict tenant isolation and prevent data leakage.

Tenant data leaks when application-level query filters are inconsistent or misconfigured. Enforcing tenant isolation requires both database-level Row Level Security policies and application-level tenant context middleware to guarantee strict filtering and prevent leakage.