Secure Your Multi-Tenant PostgreSQL Architecture

Ensure tenant isolation is strictly enforced across your PostgreSQL tables, functions, and storage.

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Technical Audit Procedure

tenant_isolation_check.sql

Terminal|tenant_isolation_check.sql

-- Ensure all public tables have a tenant identifier for RLS.

1SELECT 
2  t.table_name,
3  EXISTS (
4    SELECT 1 FROM information_schema.columns c 
5    WHERE c.table_name = t.table_name 
6    AND c.column_name = 'tenant_id'
7  ) as has_tenant_id
8FROM information_schema.tables t
9WHERE t.table_schema = 'public' 
10  AND t.table_type = 'BASE TABLE';

Market Comparison

Why industry leaders choose DBX Deterministic Audits

Feature	DBX Engine	Manual Audit	Legacy Scanners
Deterministic Path Analysis
Zero-Credential Architecture
Real-time Attack Path Graph
Automatic RLS Validation
Instant Compliance Proof
Copy-Paste Remediation

Technical Deep Dive

Tenant isolation is the heart of any SaaS business. Whether you use a 'schema-per-tenant' or 'shared-schema' approach, the risks of cross-contamination are high. DBX specializes in auditing multi-tenant PostgreSQL setups by simulating access paths and verifying that tenant-filtering predicates are consistently applied to every query.

Provable tenant isolation

Scalable security patterns

Zero-downtime auditing

Multi-architecture support

Primary Vulnerability Vectors

01
Cross-customer data leaks
02
Tenant noisy neighbors
03
Imperfect schema isolation

Audit Checklist

Verify tenant_id presence on all shared tables

Audit cross-tenant join vulnerabilities

Validate RLS performance for high-tenant counts

Check role-per-tenant permission boundaries

Audit view definitions for tenant-leaking logic

How it works

High-integrity schema introspection

Introspect

Run a read-only script to extract your database catalog. No data ever leaves your machine.

Simulate

Our engine executes billion-path simulations to find logical RLS bypasses.

Remediate

Receive copy-paste SQL fixes for every high-risk vulnerability discovered.

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