Cursor security

Cursor Installed Vulnerable or Outdated Dependencies

After Cursor generated code that introduced new npm, pip, or other package dependencies, a security audit reveals that some of these packages have known vulnerabilities (CVEs). Running npm audit or snyk test shows critical or high-severity issues in your dependency tree.

AI models are trained on data with a knowledge cutoff, which means Cursor may suggest package versions that were current during training but have since been found vulnerable. It may also suggest abandoned packages that no longer receive security patches, or lesser-known alternatives that haven't undergone security scrutiny.

This becomes a production concern when vulnerability scanners in your CI/CD pipeline block deployments, or when your organization's security team flags the issues during a review.

Error Messages You Might See

npm audit found 12 vulnerabilities (3 critical, 5 high, 4 moderate) snyk test: found 8 issues, 2 critical severity CVE-2024-XXXXX: Prototype Pollution in package-name Dependabot alert: Critical severity vulnerability in lodash pip-audit found 3 known vulnerabilities
npm audit found 12 vulnerabilities (3 critical, 5 high, 4 moderate)snyk test: found 8 issues, 2 critical severityCVE-2024-XXXXX: Prototype Pollution in package-nameDependabot alert: Critical severity vulnerability in lodashpip-audit found 3 known vulnerabilities

Common Causes

  • Outdated package versions suggested — Cursor's training data includes older package versions that have since had CVEs published against them
  • Abandoned packages recommended — The AI suggested packages that are no longer maintained and won't receive security patches
  • Transitive dependency vulnerabilities — The directly installed package is fine, but its dependencies have known vulnerabilities
  • No lockfile version pinning — Cursor generated a package.json with loose version ranges (^, ~) that resolved to vulnerable versions on install
  • Alternative packages with less scrutiny — Instead of the well-known library, Cursor suggested a less popular alternative that hasn't been audited

How to Fix It

  1. Run a full security audit — Execute npm audit, pip audit, or snyk test to identify all vulnerable packages and their severity levels
  2. Update vulnerable packages — Run npm audit fix for automatic fixes, or manually update specific packages with npm install package@latest
  3. Replace abandoned packages — Check each package's GitHub repository for last commit date and open issues. Replace packages with no activity in 12+ months
  4. Pin dependency versions — Use exact versions in package.json and commit your lockfile to ensure reproducible builds
  5. Add automated scanning to CI — Integrate Dependabot, Snyk, or npm audit into your CI/CD pipeline to catch future vulnerabilities before deployment
  6. Review Cursor suggestions critically — Before accepting a package suggestion, check its npm page for download counts, last publish date, and known vulnerabilities

Real developers can help you.

Milan Surelia Milan Surelia Milan Surelia is a Mobile App Developer with 5+ years of experience crafting scalable, cross-platform apps at 7Span and Meticha. At 7Span, he engineers feature-rich Flutter apps with smooth performance and modern UI. As the Co-Founder of Meticha, he builds open-source tools and developer-focused products that solve real-world problems. Expertise: 💡 Developing cross-platform apps using Flutter, Dart, and Jetpack Compose for Android, iOS, and Web. 🖋️ Sharing insights through technical writing, blogging, and open-source contributions. 🤝 Collaborating closely with designers, PMs, and developers to build seamless mobile experiences. Notable Achievements: 🎯 Revamped the Vepaar app into Vepaar Store & CRM with a 2x performance boost and smoother UX. 🚀 Launched Compose101 — a Jetpack Compose starter kit to speed up Android development. 🌟 Open source contributions on Github & StackOverflow for Flutter & Dart 🎖️ Worked on improving app performance and user experience with smart solutions. Milan is always happy to connect, work on new ideas, and explore the latest in technology. Matthew Butler Matthew Butler Systems Development Engineer @ Amazon Web Services Prakash Prajapati Prakash Prajapati I’m a Senior Python Developer specializing in building secure, scalable, and highly available systems. I work primarily with Python, Django, FastAPI, Docker, PostgreSQL, and modern AI tooling such as PydanticAI, focusing on clean architecture, strong design principles, and reliable DevOps practices. I enjoy solving complex engineering problems and designing systems that are maintainable, resilient, and built to scale. Omar Faruk Omar Faruk As a Product Engineer at Klasio, I contributed to end-to-end product development, focusing on scalability, performance, and user experience. My work spanned building and refining core features, developing dynamic website templates, integrating secure and reliable payment gateways, and optimizing the overall system architecture. I played a key role in creating a scalable and maintainable platform to support educators and learners globally. I'm enthusiastic about embracing new challenges and making meaningful contributions. Meïr Ankri Meïr Ankri Full-stack developer specializing in React / Next.js / Node.js with 6+ years of experience. I've worked across various sectors including automotive (Reezocar/Société Générale), healthcare (Medical Link SaaS), and e-commerce (Glasman). I build web apps end-to-end, from architecture to production, with a focus on scalability, performance, and code quality. I also mentor junior developers and contribute to technical decisions and code reviews. Basel Issmail Basel Issmail ’m a Senior Full-Stack Developer and Tech Lead with experience designing and building scalable web platforms. I work across the full development lifecycle, from translating business requirements into technical architecture to delivering reliable production systems. My work focuses on modern web technologies, including TypeScript, Angular, Node.js, and cloud-based architectures. I enjoy solving complex technical problems and helping teams turn product ideas and prototypes into working platforms that can grow and scale. In addition to development, I often collaborate closely with product managers, business analysts, designers, and QA teams to ensure that solutions align with both technical and business goals. I enjoy working with startups and product teams where I can contribute both as a hands-on engineer and as a technical partner in designing and delivering impactful software. Jen Jacobsen Jen Jacobsen I’m a Full-Stack Developer with over 10 years of experience building modern web and mobile applications. I enjoy working across the full product lifecycle — turning ideas into real, well-built products that are intuitive for users and scalable for businesses. I particularly enjoy building mobile apps, modern web platforms, and solving complex technical problems in a way that keeps systems clean, reliable, and easy to maintain. Matt Butler Matt Butler Software Engineer @ AWS MFox MFox Full-stack professional senior engineer (15+years). Extensive experience in software development, qa, and IP networking. Taufan Taufan I’m a product-focused engineer and tech leader who builds scalable systems and turns ideas into production-ready platforms. Over the past years, I’ve worked across startups and fast-moving teams, leading backend architecture, improving system reliability, and shipping products used by thousands of users. My strength is not just writing code — but connecting product vision, technical execution, and business impact.

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Frequently Asked Questions

Should I run npm audit fix --force?

Be cautious with --force as it may introduce breaking changes by jumping major versions. Start with npm audit fix (without --force), then manually update the remaining packages one by one, testing after each update.

How do I check if a package is abandoned?

Check the package's GitHub repository for last commit date, open issues count, and whether maintainers respond to issues. On npm, check the last publish date. If there's been no activity for over a year with open security issues, consider it abandoned.

Related Cursor Issues

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