SEC-007critical SeverityHardcoded Secrets & Credential Exposure
JWT Signing Secrets Isolated on Server
Agents write fallback secret strings like secret = process.env.JWT_SECRET || "default_jwt_secret" which allows trivial signature forging.
1-Click Fix Prompt for Cursor & Claude Code
Review my codebase for "JWT Signing Secrets Isolated on Server" (SEC-007). Issue: Agents write fallback secret strings like secret = process.env.JWT_SECRET || "default_jwt_secret" which allows trivial signature forging. Remediation required: Crash on startup if JWT_SECRET is missing rather than falling back to an insecure default string. Please: 1. Locate any occurrences of this issue across my repository. 2. Refactor the code to follow production standards without breaking existing functionality. 3. Provide a clear command or step to test and verify the fix.
Why AI Assistants Write This Bug
Agents write fallback secret strings like secret = process.env.JWT_SECRET || "default_jwt_secret" which allows trivial signature forging.
AI code generation prioritizes immediate syntax execution over production edge cases. When an assistant hits an undefined variable or strict type error, it frequently takes the path of least resistance rather than implementing standard pre-launch security patterns.
Code Comparison
Common AI Code PatternVulnerable
// Vulnerable AI-generated pattern for: JWT Signing Secrets Isolated on Server
// Leaking sensitive key in client-callable code
export const STRIPE_KEY = "sk_live_51OzRealProductionKey12345";
export async function checkout() {
// Client bundle exposes secret key to Chrome DevTools
}Launch-Ready Fix
// Production-ready fix for: JWT Signing Secrets Isolated on Server
// Stored strictly in server-side environment variable
const stripeSecretKey = process.env.STRIPE_SECRET_KEY;
if (!stripeSecretKey) {
throw new Error("Missing STRIPE_SECRET_KEY in server environment");
}
// Invoked strictly inside server route or Server Action
export const stripe = new Stripe(stripeSecretKey);Remediation & Verification Checklist
Remediation: Crash on startup if JWT_SECRET is missing rather than falling back to an insecure default string.
- Search your codebase for pattern matching "JWT Signing Secrets Isolated on Server".
- Apply the recommended remediation: Crash on startup if JWT_SECRET is missing rather than falling back to an insecure default string.
- Run local build and test commands to ensure no regressions.
- Verify in your browser or with curl that the issue is resolved.
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