Is Cursor safe to use?

Yes. Cursor the editor is safe for the vast majority of developers. The real risk is shipping AI-generated code without review and running outdated versions with known CVEs. Keep it updated and review security-sensitive code before launch.

Can Cursor leak my code or secrets?

Cursor sends code to AI models to function; check its privacy/Privacy Mode settings for how your code is handled. Locally, the bigger risk is the agent committing secrets — keep .env files in .gitignore and review diffs before pushing.

Is AI-generated code from Cursor secure?

Not automatically. Independent testing has repeatedly found that a large share of AI-generated code contains security vulnerabilities. Treat generated code as a draft and review anything that handles authentication, data access or secrets.

Is Cursor safe? How to secure your Cursor app

Cursor is an AI code editor — the risk isn't Cursor itself, it's the insecure code its agent confidently writes.

Short answer

Cursor is safe to use as an editor. The security risk is twofold: the code its AI generates can contain real vulnerabilities (exposed secrets, missing auth, injection), and Cursor itself has had disclosed CVEs in how it handles untrusted project files and prompt injection. Review AI-written code before you ship it, and keep Cursor updated.

Cursor is safe to use as an AI code editor, and millions of developers do. The security risk is twofold. First, the code Cursor's agent generates can contain real vulnerabilities — hardcoded secrets, missing authorization, SQL injection, weak input validation — written confidently and without a warning. Second, Cursor itself has had disclosed CVEs related to handling untrusted project files and prompt-injection attacks via malicious repo content. The takeaway: keep Cursor updated, be cautious opening untrusted repos, and review AI-written code (especially anything touching auth, data or secrets) before it reaches production.

Cursor security at a glance

Platform type: AI code editor / coding agent
Most common risk: Insecure AI-generated code shipped unreviewed
Also watch for: Prompt injection via untrusted repo files; CVEs
How to check: Review AI-written code; scan repo and deployed app
Safe to launch?: Yes — after reviewing the generated code

The most common Cursor security risks

Insecure code, written confidently

Cursor's agent can produce code with hardcoded secrets, missing authorization checks, or injection flaws — and it rarely flags the risk. Roughly 45% of AI-generated code samples have been found to contain a vulnerability.

Prompt injection from untrusted files

Opening a malicious repository can let attacker-controlled content in files or rules influence the agent. Disclosed Cursor CVEs cover exactly this class of issue — keep the editor updated.

Secrets in the workspace

Agents that read and edit your whole workspace can surface or commit secrets if .env files and keys aren't properly ignored.

How to secure your Cursor app

Cursor security FAQ

Is Cursor safe to use?: Yes. Cursor the editor is safe for the vast majority of developers. The real risk is shipping AI-generated code without review and running outdated versions with known CVEs. Keep it updated and review security-sensitive code before launch.
Can Cursor leak my code or secrets?: Cursor sends code to AI models to function; check its privacy/Privacy Mode settings for how your code is handled. Locally, the bigger risk is the agent committing secrets — keep .env files in .gitignore and review diffs before pushing.
Is AI-generated code from Cursor secure?: Not automatically. Independent testing has repeatedly found that a large share of AI-generated code contains security vulnerabilities. Treat generated code as a draft and review anything that handles authentication, data access or secrets.