Is vibe-coded software secure? Risks and a review checklist

Vibe-coded software is not automatically insecure, but it often ships with avoidable risks: API keys in front-end code, databases without access rules, missing input validation, weak authentication, outdated packages and no logging. These issues appear because AI tools optimise for working features, not security, and builders may not review the code. Before launch, run a security checklist, fix exposed secrets and access rules, and have someone with security experience review anything handling personal data or payments.

Why are vibe-coded apps often insecure?

Vibe coding means building software by prompting an AI tool and accepting what it produces. The tools are very good at making features work, and a working demo feels finished. Security is mostly invisible: nothing on screen tells you the database is readable by anyone, or that a secret key is shipped to every browser. If no one reviews the code, those gaps reach production.

What are the most common risks?

Exposed secrets: API keys and database passwords in front-end code or public repositories.
Open data: Databases without access rules, so any user can read or change any record.
Missing validation: Forms and APIs that accept any input, inviting injection attacks and bad data.
Weak authentication: Home-made logins, no rate limits on sign-in, or missing checks on who may see what.
Outdated or invented packages: Old dependencies with known flaws, or package names the AI made up.
No logging: Nobody can tell if or how the app was abused.

What should you check before launch?

Find and move secrets: Search the code for keys; keep them on the server or in a secrets manager and rotate any that were exposed.
Lock down the database: Turn on row-level or record-level access rules so users only see their own data.
Check authorisation on every request: Confirm each API checks who the user is and what they may access.
Validate all input: Check type, length and format on the server, not only in the browser.
Use proven authentication: Prefer an established auth provider over custom login code.
Update dependencies: Remove unused packages and update the rest; check every package actually exists and is reputable.
Add rate limits: Limit sign-in attempts and API calls.
Turn on logging and alerts: Record errors and suspicious activity.
Test with a second account: Try to see or change another user’s data.
Get a review: Have someone with security experience check anything sensitive.

These checks follow the same principles as our API security best practices.

Can AI help you secure the code?

Yes, as a first pass. Ask your coding agent to review the code for security issues, list where secrets are used, and explain how access is controlled. Security scanners and dependency checkers catch many common problems automatically. Treat AI review as a helpful second pair of eyes, not a guarantee: it can miss issues and can be confidently wrong.

How much review does an app need?

What does a real problem look like?

A founder builds a booking app for fitness classes with an AI app builder over a weekend. It works: members sign up, book classes and pay. A friend with security experience opens the browser’s developer tools and finds the database key in the page source. With it, anyone can download every member’s name, email and booking history, or delete records. The fix takes an afternoon: move database calls behind server functions, turn on row-level access rules so members only see their own bookings, rotate the exposed key and add a test that tries to read another member’s data. Nothing about the app’s appearance changed, but it became safe to launch.

What should you do after launch?

Watch error logs and alerts weekly
Update dependencies monthly
Rotate keys if a team member leaves
Re-run the checklist before major releases
Have a simple plan for what to do if data is exposed

How do you build securely from the start?

Write security requirements into your spec, for example “users can only see their own orders”
Choose platforms with built-in authentication and access rules
Keep the project in version control and review changes
Ask the agent to write tests for access rules
Schedule a review before every major release

Our guide to spec-driven development shows how to put requirements like these in writing.

A few hours of checking before launch is far cheaper than dealing with a data leak afterwards.

Keep the checklist in your repository.

How UIUX Studio helps

We review and harden vibe-coded apps, rebuild what needs rebuilding and set up secure foundations for growth. Talk to our product engineering team.

Frequently asked questions

Is vibe-coded software safe?

It can be, after a proper security check; many apps ship with avoidable issues.

What is the biggest risk?

Exposed secrets and databases without access rules.

Can AI check its own code for security?

It helps as a first pass, but does not replace expert review.

Do I need a security expert?

For apps with personal data, payments or many users, yes.

How do I know if my keys are exposed?

Search your front-end code and repository history; rotate any key found.