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Database & Row-Level Security

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Database Security & RLS

• Enable RLS on every exposed table that requires row-level authorization.
• Identify exposed schemas.
• Identify every table accessible by anon.
• Identify every table accessible by authenticated.
• Verify privileges and RLS policies are reviewed together.
• Verify adding RLS policies did not leave unintended grants.
• Verify SELECT policies.
• Verify INSERT policies.
• Verify UPDATE policies.
• Verify DELETE policies.
• Verify WITH CHECK conditions for inserts.
• Verify WITH CHECK conditions for updates.
• Verify UPDATE cannot change ownership.
• Verify users cannot change tenant IDs.
• Verify users cannot change roles.
• Verify users cannot change billing status.
• Verify users cannot modify security-sensitive flags.
• Verify service-role/bypass-RLS usage is limited.
• Verify privileged backend queries perform explicit authorization checks before bypassing RLS.
• Verify security-definer functions.
• Verify security-definer functions set a safe search_path.
• Verify security-definer functions do not expose arbitrary SQL execution.
• Verify function EXECUTE privileges.
• Verify exposed RPC functions.
• Verify RPC functions cannot be used to bypass RLS.
• Verify triggers cannot be abused to modify protected data.
• Verify views do not unintentionally bypass intended authorization.
• Verify materialized views do not expose cross-tenant data.
• Verify database functions cannot access secrets unnecessarily.
• Verify extensions are minimized.
• Verify extension privileges.
• Verify database roles follow least privilege.
• Verify anonymous/authenticated roles cannot create privileged objects.
• Define tenant key for every multi-tenant table.
• Verify every tenant-owned child table is protected.
• Verify indirect relations cannot cross tenants.
• Verify joins cannot leak another tenant's rows.
• Verify aggregate queries cannot infer restricted data.
• Verify counts cannot reveal existence of private objects.
• Verify search indexes cannot cross tenants.
• Verify full-text search cannot return unauthorized documents.
• Verify database views preserve tenant isolation.
• Verify reporting/export queries preserve tenant isolation.
• Verify background jobs preserve tenant isolation.
• Verify migration scripts preserve tenant fields.
• Review all raw SQL.
• Review all RPC inputs.
• Review dynamic SQL.
• Review JSONB manipulation.
• Review ORDER BY and dynamic identifiers.
• Review regex usage.
• Review LIKE/ILIKE patterns.
• Review full-text search.
• Review SQL functions for privilege escalation.
• Review trigger recursion/abuse.
• Review race conditions around balances, counters, quotas, and ownership.
• Verify secrets are not stored in normal application tables.
• Verify sensitive secrets use an appropriate secret-management mechanism.
• Verify database backups are protected.
• Verify database exports are protected.
• Verify production database credentials are separated from development credentials.
• Verify database credentials are rotated.
• Verify service-role credentials are rotated after suspected exposure.
• Verify database logs do not contain secrets.
• Verify PII classification exists for sensitive columns.
• Verify retention/deletion requirements.
• Verify cryptographic protection for particularly sensitive application data where needed.
• Verify database audit/logging meets the project's compliance requirements.