Windsurf

Security Guide

How to Secure Your Windsurf App

Last updated: January 12, 2026

Windsurf's Cascade agent enables rapid development, but AI-generated code requires security review. This guide covers securing your Windsurf workflow and the applications you build.

Get Starter Scan Windsurf Security Overview

Why Security Matters for Windsurf

Key Security Concerns

94 Chromium CVEs discovered in 2024-2025 security audits - far more than competitors

Chromium-based architecture means browser-level vulnerabilities affect the IDE

Electron apps like Windsurf have larger attack surface than web-based tools

Cascade AI sends code to cloud by default (Zero Data Retention must be enabled)

Updates are critical but users often delay installing them

Security Strengths

Zero Data Retention mode: Codeium claims no code storage in this mode

Self-hosted deployment option for enterprise (keeps AI on-premises)

Codeium is SOC 2 Type II certified

Cascade AI feature can work with local models

Active development - Codeium releases patches frequently

Known Security Incidents

94 Chromium CVEs Discovered in Security Audit

high

2024-2025

Security researchers identified 94 Chromium-based vulnerabilities in Windsurf IDE, including memory corruption, sandbox escapes, and remote code execution risks. Users must keep Windsurf updated to the latest version to receive patches.

Step-by-Step Security Guide

1. Use Ask Mode for Sensitive Operations

Configure Cascade to ask before executing commands. Review all proposed file changes before accepting.

2. Configure File Exclusions

Windsurf respects .gitignore. Ensure all sensitive files are listed to prevent them from being sent to AI servers.

# .gitignore
.env*
*.pem
*.key
credentials/

3. Review Cascade-Generated Code

Before accepting multi-file changes from Cascade, review the diff carefully. AI can make unintended modifications.

4. Use Version Control Checkpoints

Commit or stash changes before running Cascade flows. This allows easy rollback if something goes wrong.

5. Audit MCP Servers

Like Cursor, Windsurf uses MCP servers that can execute code. Only install trusted servers.

6. Scan Before Deployment

Run VAS on your deployed application to catch vulnerabilities in AI-generated code.

Common Security Mistakes

Avoid these common Windsurf security pitfalls:

Auto-accepting Cascade changes without review

Sharing credentials in AI prompts

Not using version control before AI operations

Installing untrusted MCP servers

Trusting AI for security-critical implementations

Known Windsurf Vulnerabilities

These are documented security issues specific to Windsurf applications. Click through for detailed remediation guidance.

criticalXSS in Windsurf-Generated Apps

highExposed API Keys in Windsurf Projects

mediumInsecure Headers in Windsurf Apps

highBroken Authentication in Windsurf Apps

Recommended Security Tools

Use these tools to maintain security throughout development:

VAS Security Scanner

npm audit / yarn audit

Git-secrets

Snyk

Ready to Secure Your App?

Security is an ongoing process, not a one-time checklist. After implementing these steps, use VAS to verify your Windsurf app is secure before launch, and consider regular scans as you add new features.

Start Security Scan

Frequently Asked Questions

Is Cascade safe to use?

Cascade is safe with precautions: use Ask mode, review all changes, don't share secrets, and keep version control checkpoints. It's a powerful tool that requires careful use.

Can Cascade modify or delete files?

Yes, Cascade can execute file operations if you allow it. Use Ask mode to review operations before they execute. Keep your work in version control for easy recovery.

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