Convex Security Scanner
Built a real-time app with Convex? Make sure your queries, mutations, and actions are properly secured before users go live.
Our automated security scanner analyzes your Convex application for vulnerabilities, misconfigurations, and exposed secrets. Get a comprehensive security report in minutes, not days.
Top 4 Security Issues in Convex Apps
Unauthenticated Query Access
Convex queries are public by default. Without explicit auth checks, anyone can read your data.
Unprotected Mutations
Mutations without identity verification allow unauthenticated data manipulation.
Secrets in Action Functions
Actions calling external APIs may have secrets accessible if function access controls aren't configured.
Missing Argument Validation
Queries and mutations accepting user input without validation are susceptible to injection.
Where Security Breaks in Convex Apps
Built on Postgres, Convex applications share a recognizable fingerprint, which means attackers and automated scanners find them the same way every time. Based on real vulnerability patterns in Convex deployments, the breakdown is 1 critical-impact issue, 2 high-impact, and 1 medium-or-lower.
Unauthenticated Query Access
Convex queries are public by default. Without explicit auth checks, anyone can read your data.
Fix: Enforce email verification, minimum password requirements, and rate limiting on auth endpoints. Test auth flows as unauthenticated and cross-user to verify access controls.
Unprotected Mutations
Mutations without identity verification allow unauthenticated data manipulation.
Fix: Scan your deployed application with a security tool that understands this stack. Address the specific findings — generic best practices don't catch platform-specific misconfigurations.
Secrets in Action Functions
Actions calling external APIs may have secrets accessible if function access controls aren't configured.
Fix: Enable Row Level Security (Supabase) or Security Rules (Firebase) on every table. For custom backends, enforce authorization at the query layer — never client-side.
Missing Argument Validation
Queries and mutations accepting user input without validation are susceptible to injection.
Fix: Use parameterized queries, sanitize all user input, and render dynamic content with framework escaping (React JSX, not dangerouslySetInnerHTML).
What We Check
Query Access Control
Tests Convex queries for proper authentication checks and data scoping.
Mutation Security
Verifies mutations require authentication and validate arguments.
Secret Detection
Scans frontend bundles for leaked environment secrets.
Auth Configuration
Checks authentication integration for session handling and token validation.
What You'll Get
Why Convex Apps Need Security Scanning
Convex is a real-time backend gaining traction with AI apps and vibe coders. Unlike Supabase where RLS acts as a safety net, Convex requires you to add auth and authorization checks directly in your function code.
vas scans your deployed Convex application to identify functions that lack authentication, mutations that skip validation, and secrets that have leaked into client-side code.
How Convex Security Scanning Works
Submit Your URL
Enter your Convex application URL. Our scanner automatically detects your tech stack and configures the appropriate security checks for Convex.
Automated Analysis
We scan for exposed secrets, security headers, authentication issues, database misconfigurations, and Convex-specific vulnerabilities. A deep scan typically completes in 20-30 minutes.
Get Actionable Results
Receive a detailed report with prioritized vulnerabilities, severity ratings, and step-by-step remediation guidance with code examples specific to Convex.
Common Questions About Convex Security
What vulnerabilities are most common in Convex apps?
The top finding classes in Convex apps: unauthenticated query access; unprotected mutations; secrets in action functions. Of those, secrets in action functions is the most frequent critical-impact issue. It typically exposes the full dataset in a single query.
What does a vas scan of a Convex app check?
The scan probes your deployed app for the specific findings above: query access control, mutation security, secret detection, auth configuration. It actually attempts each vulnerability class (not just header inspection) and reports results with severity + fix for each.
Is running a scan safe for production?
Yes. The scanner uses read-only probes against public endpoints: no data modification, no destructive tests. A deep scan typically finishes in 20-30 minutes and will not impact application availability.
Remediation Playbook for Convex
Priority-ordered fixes for the specific findings we see in Convex apps. Critical items close data-exposure gaps; high items prevent compromise; medium items reduce attack surface. Applies to apps using Postgres, the dominant Convex stack.
1. Unauthenticated Query Access
Why it matters: Convex queries are public by default. Without explicit auth checks, anyone can read your data.
How to close it: Enforce email verification, minimum password requirements, and rate limiting on auth endpoints. Test auth flows as unauthenticated and cross-user to verify access controls.
2. Unprotected Mutations
Why it matters: Mutations without identity verification allow unauthenticated data manipulation.
How to close it: Scan your deployed application with a security tool that understands this stack. Address the specific findings — generic best practices don't catch platform-specific misconfigurations.
3. Secrets in Action Functions
Why it matters: Actions calling external APIs may have secrets accessible if function access controls aren't configured.
How to close it: Enable Row Level Security (Supabase) or Security Rules (Firebase) on every table. For custom backends, enforce authorization at the query layer — never client-side.
4. Missing Argument Validation
Why it matters: Queries and mutations accepting user input without validation are susceptible to injection.
How to close it: Use parameterized queries, sanitize all user input, and render dynamic content with framework escaping (React JSX, not dangerouslySetInnerHTML).
Verify the fixes stuck
Run a vas scan after applying each fix to confirm the gap is actually closed. "I applied the fix" is not evidence. The fix may have been partial, reverted, or not deployed. Re-scanning gives you proof, and a record for compliance if you ever need it.
Secure Your Convex App
Don't let vulnerabilities compromise your hard work. Security issues in Convex applications can lead to data breaches, unauthorized access, and damaged user trust. The average data breach costs startups between $120,000 and $1.24 million.
Run your first scan free, in minutes. Scan before you launch and deploy with confidence knowing your application meets security best practices.
More on Convex Security
Every angle of Convex security, from the specific findings we detect to step-by-step fixes.
Convex Security Risks
Specific risks we find in Convex apps, with real-world examples.
Convex Security Issues
Issues grouped by severity with detection and fix steps.
Convex Security Checklist
Pre-launch checklist covering every finding class for Convex.
How to Secure Convex Apps
Step-by-step hardening guide for Convex deployments.