How to Secure Your Turso App
Last updated: April 20, 2026
Turso provides edge SQLite databases with libSQL. This guide covers securing your Turso-powered applications.
Why Security Matters for Turso
Key Security Concerns
- Embedded replicas in client apps contain readable data (read-only, but visible)
- Auth tokens in client code can be extracted - use read-only tokens only
- No Row Level Security - SQLite doesn't support RLS natively
- Edge locations mean data exists in multiple geographic jurisdictions
- Sync conflicts on embedded replicas could cause data inconsistencies
Security Strengths
- libSQL (SQLite fork) is battle-tested embedded database technology
- Token-based auth: create read-only vs full-access tokens
- Edge replication keeps data close to users with encryption in transit
- Group-based organization for multi-tenant isolation
- Embedded replicas sync automatically - no direct database exposure
Step-by-Step Security Guide
1. Protect Auth Tokens
Store Turso auth tokens in environment variables. Never commit them to repositories.
# Use environment variables
TURSO_DATABASE_URL=libsql://...
TURSO_AUTH_TOKEN=...2. Use Read-Only Tokens Where Possible
For read-only operations, use read-only tokens to limit potential damage from token exposure.
3. Implement Application-Level Access Control
Turso is SQLite-based and lacks RLS. Implement access control in your application layer.
4. Use Parameterized Queries
Prevent SQL injection by using parameterized queries with the libSQL client.
await db.execute({
sql: 'SELECT * FROM users WHERE id = ?',
args: [userId]
});5. Secure Embedded Replicas
If using embedded replicas, ensure the SQLite file location is secured and not accessible via web.
6. Scan Your Application
Run vas to verify your deployed application handles database access securely.
Common Security Mistakes
Avoid these common Turso security pitfalls:
- Auth tokens in frontend code
- Full-access tokens for read-only operations
- Missing application-level access control
- String concatenation in SQL queries
- Embedded replica files in public directories
Recommended Security Tools
Use these tools to maintain security throughout development:
Ready to Secure Your App?
Security is an ongoing process, not a one-time checklist. After implementing these steps, use vas to verify your Turso app is secure before launch, and consider regular scans as you add new features.
Frequently Asked Questions
Does Turso have Row Level Security?
No, Turso uses libSQL (SQLite-compatible) which doesn't have RLS. Implement access control in your application layer, filtering queries based on authenticated user.
How do I secure edge replicas?
Edge replicas use the same auth token as primary. Turso handles replication security. Your responsibility is protecting the token and implementing proper access control.
Explore Related Resources
More on Turso Security
Every angle of Turso security, from the specific findings we detect to step-by-step fixes.
Turso Security Scanner
Hub page: scan your Turso app for vulnerabilities.
Turso Security Risks
Specific risks we find in Turso apps, with real-world examples.
Turso Security Issues
Issues grouped by severity with detection and fix steps.
Is Turso Safe?
Honest assessment of Turso's production readiness.
Turso Security Checklist
Pre-launch checklist covering every finding class for Turso.