Security Overview

Security architecture and best practices for Ever Gauzy deployments.

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Contact: security@ever.co — If you discover any security issue, please disclose responsibly by sending an email, not by creating a GitHub issue.

Ever Gauzy™ follows good security practices, but 100% security cannot be guaranteed in any software. In a production setup, all client-side to server-side communications should be encrypted using HTTPS/WSS/SSL (REST APIs, GraphQL endpoint, Socket.io WebSockets, etc.).

Security Layers

Authentication Security

scrypt password hashing (default) with transparent bcrypt fallback for legacy hashes
Progressive hash migration — legacy bcrypt hashes are automatically re-hashed to scrypt on login
JWT with short-lived access tokens and defense-in-depth validation
Refresh tokens with identity reconciliation and token rotation
Constant-time password comparison (timingSafeEqual) — prevents timing attacks
OAuth 2.0 for social authentication (tokens validated server-side against each provider's API)
Email verification for new accounts
Magic login codes via CSPRNG (crypto.randomInt())

Authorization Guards

The application uses a layered guard system with 12 specialized guards:

Guard	Purpose
`AuthGuard`	Global JWT validation (applied to all routes)
`TenantPermissionGuard`	Ensures requests are scoped to the user's tenant
`PermissionGuard`	Checks fine-grained permissions (`@Permissions()`)
`RoleGuard`	Role-based access control (`@Roles()`)
`OrganizationPermissionGuard`	Organization-level permission checks
`ManagerOrPermissionGuard`	Allows managers OR users with specific permissions
`TenantBaseGuard`	Base tenant validation logic
`FeatureFlagGuard`	Feature flag gating
`ApiKeyAuthGuard`	API key authentication for integrations
`AuthRefreshGuard`	Validates refresh tokens specifically
`RegisterAuthorizationGuard`	Controls user registration access

Routes explicitly decorated with @Public() are the only exceptions to the global AuthGuard.

Tenant Isolation

All entities extending TenantBaseEntity or TenantOrganizationBaseEntity are automatically scoped to the current tenant. Cross-tenant data access is prevented at the ORM level.

HTTP Security Headers

Helmet is enabled in all environments, providing:

X-Content-Type-Options: nosniff
X-Frame-Options: SAMEORIGIN
Strict-Transport-Security (HSTS)
X-XSS-Protection
Content Security Policy (CSP)
And other hardening headers

Input Validation

class-validator is used across all DTOs with @UseValidationPipe({ whitelist: true }) to strip unknown properties.
UUIDValidationPipe validates UUID parameters.
ParseJsonPipe parses query parameters with safe defaults.
Relation loading in user endpoints is restricted to an allowlist of safe relations.
File upload paths are sanitized to prevent path traversal (alphanumeric, dash, underscore only).

Session Management

Sessions are managed through Redis (production) or in-memory stores (development):

Redis-backed sessions provide persistence across server restarts.
Session configuration is handled by configureRedisSession().

File Storage Security

All file storage providers (AWS S3, DigitalOcean Spaces, Wasabi, Cloudinary, Local) use structured logging:

No credential leaks — API keys, secret keys, and full configuration objects are never logged.
Error logging uses Logger.error() with message-only output.
Debug logs use safe messages (e.g., "S3 configuration loaded" instead of JSON.stringify(config)).

Database Seeding Safety

Default user seeding includes protections:

Existing user passwords are never overwritten during re-seeding.
Set FORCE_SEED_PASSWORD=true to explicitly allow password overwrites (use with caution).

Environment Variables Reference

Variable	Purpose	Required in Prod
`JWT_SECRET`	Access token signing key	✅
`JWT_REFRESH_TOKEN_SECRET`	Refresh token signing key	✅
`JWT_VERIFICATION_TOKEN_SECRET`	Email verification token key	✅
`JWT_TOKEN_EXPIRATION_TIME`	Access token expiry (seconds)	No
`JWT_REFRESH_TOKEN_EXPIRATION_TIME`	Refresh token expiry (seconds)	No
`JWT_VERIFICATION_TOKEN_EXPIRATION_TIME`	Verification token expiry (seconds)	No
`THROTTLE_ENABLED`	Enable/disable rate limiting	No (default: `true`)
`THROTTLE_TTL`	Rate limit window (ms)	No
`THROTTLE_LIMIT`	Global rate limit	No
`MAGIC_CODE_EXPIRATION_TIME`	Magic code expiry (seconds)	No
`FORCE_SEED_PASSWORD`	Allow seed password overwrite	No (default: `false`)
`OTEL_ENABLED`	Enable OpenTelemetry tracing	No
`ALLOWED_ORIGINS`	CORS allowed origins (comma-separated)	Recommended

CVE Clarifications

CVE-2023-53951 (JWT Weak HMAC Secret)

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CVE-2023-53951 refers to the public demo environment (demo.gauzy.co / apidemo.gauzy.co), which intentionally uses default credentials and secrets for testing purposes. This is expected behavior for a demo environment meant to allow public access and evaluation of the software.

Production deployments should always use strong, unique secrets configured via environment variables (e.g., JWT_SECRET, JWT_REFRESH_SECRET). See the environment configuration documentation for all required security-related environment variables.

Authentication Flows — login, magic code, workspace switching
Token Lifecycle — JWT payload, validation, rotation
Password Security — hashing, policy, reset flow
OAuth App Authorization — server-to-server OAuth
Data Protection — GDPR, data handling
Rate Limiting — API throttling
CORS Configuration — cross-origin settings
Audit Logging — activity logs and observability
Authentication — auth setup details
Roles & Permissions — RBAC

Security Layers​

Authentication Security​

Authorization Guards​

Tenant Isolation​

HTTP Security Headers​

Input Validation​

Session Management​

File Storage Security​

Database Seeding Safety​

Environment Variables Reference​

CVE Clarifications​

CVE-2023-53951 (JWT Weak HMAC Secret)​

Related Pages​