Overview
Express.js security hardening - cookies, CORS, CSRF, rate limiting, and Helmet
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AI-Optimized Security
Every rule includes CWE, OWASP, and CVSS metadata for AI assistants to provide precise, context-aware fixes.
Rules (10)
Browse all Express.js security rules with CWE/OWASP mapping
Changelog
View version history and updates
Comprehensive security rules for Express.js applications, mapping to OWASP Top 10.
โญ If this plugin caught a real bug for you, star the repo โ it's the signal that keeps these rules maintained.
Description
This plugin provides Comprehensive security rules for Express.js applications, mapping to OWASP Top 10.
Philosophy
Interlace fosters strength through integration. Instead of stacking isolated rules, we interlace security directly into your workflow to create a resilient fabric of code. We believe tools should guide rather than gatekeep, providing educational feedback that strengthens the developer with every interaction.
Getting Started
- To check out the guide, visit eslint.interlace.tools. ๐
- ่ฆๆฅ็ไธญๆ ๆๅ, ่ฏท่ฎฟ้ฎ eslint.interlace.tools. ๐
- ๊ฐ์ด๋ ๋ฌธ์๋ eslint.interlace.tools์์ ํ์ธํ์ค ์ ์์ต๋๋ค. ๐
- ใฌใคใใฏ eslint.interlace.toolsใงใ็ขบ่ชใใ ใใใ ๐
- Para ver la guรญa, visita eslint.interlace.tools. ๐
- ููุงุทูุงุน ุนูู ุงูุฏูููุ ูู ุจุฒูุงุฑุฉ eslint.interlace.tools. ๐
npm install eslint-plugin-express-security --save-devโ๏ธ Configuration Presets
| Preset | Description |
|---|---|
recommended | Balanced security for Express projects (critical as error, others warn) |
strict | Maximum security enforcement (all rules as errors) |
api | HTTP/API security rules only (CORS, CSRF, cookies, rate limiting) |
graphql | GraphQL-specific security rules only |
๐ Supported Libraries
| Library | npm | Downloads | Detection |
|---|---|---|---|
express |  |  | Misconfig, DoS |
helmet |  |  | Missing Security Headers |
cors |  |  | Permissive CORS |
csurf |  |  | Missing CSRF Protection |
๐ฆ Compatibility
| Package | Version |
|---|---|
| ESLint | ^8.0.0 || ^9.0.0 || ^10.0.0 |
| Node.js | >=18.0.0 |
See the ESLint Version Support Policy โ current ecosystem share data, the 20% gate, and the forward-looking exception that covers v10.
Rules
Legend
| Icon | Description |
|---|---|
| ๐ผ | Recommended: Included in the recommended preset. |
| โ ๏ธ | Warns: Set to warn in recommended preset. |
| ๐ง | Auto-fixable: Automatically fixable by the --fix CLI option. |
| ๐ก | Suggestions: Providing code suggestions in IDE. |
| ๐ซ | Deprecated: This rule is deprecated. |
| ๐ข | Type-unaware: AST-only, runs in oxlint JS-plugin tier. |
| ๐ก | Type-aware (refining): pure-AST primary path; types refine precision. |
| ๐ | Type-aware (graceful): requires TS program; silent without it. |
| Rule | CWE | OWASP | CVSS | Description | ๐ง | ๐ผ | โ ๏ธ | ๐ง | ๐ก | ๐ซ |
|---|---|---|---|---|---|---|---|---|---|---|
| no-cors-credentials-wildcard | CWE-942 | The rule provides LLM-optimized error messages (Compact 2-line format) with actionable security guidance: | ๐ข | |||||||
| no-exposed-debug-endpoints | CWE-489 | A05:2021 | Identifies potential debug, administration, or testing endpoints that are often left exposed in productionโฆ | ๐ข | ||||||
| no-express-unsafe-regex-route | CWE-1333 | This rule detects Regular Expression Denial of Service (ReDoS) vulnerabilities in Express route patterns | ๐ข | |||||||
| no-graphql-introspection-production | CWE-200 | This rule detects GraphQL servers with introspection enabled in production | ๐ข | |||||||
| no-insecure-cookie-options | CWE-614 | The rule provides LLM-optimized error messages (Compact 2-line format) with actionable security guidance: | ๐ข | ๐ผ | ||||||
| no-permissive-cors | CWE-942 | Detects overly permissive CORS configurations in Express.js applications | ๐ข | ๐ผ | ||||||
| require-csrf-protection | CWE-352 | The rule provides LLM-optimized error messages (Compact 2-line format) with actionable security guidance: | ๐ข | ๐ผ | ||||||
| require-express-body-parser-limits | CWE-400 | The rule provides LLM-optimized error messages (Compact 2-line format) with actionable security guidance: | ๐ข | |||||||
| require-helmet | CWE-693 | This rule detects Express.js applications that are missing the helmet middleware | ๐ข | ๐ผ | ||||||
| require-rate-limiting | CWE-770 | This rule detects Express.js applications missing rate limiting middleware | ๐ข | ๐ผ |
๐ Related ESLint Plugins
Part of the Interlace ESLint Ecosystem โ AI-native security plugins with LLM-optimized error messages:
| Plugin | Downloads | Description |
|---|---|---|
eslint-plugin-secure-coding |  | General security rules & OWASP guidelines. |
eslint-plugin-pg |  | PostgreSQL security & best practices. |
eslint-plugin-node-security |  | Node.js core-module security (fs, child_process, vm, crypto, Buffer). |
eslint-plugin-jwt |  | JWT security & best practices. |
eslint-plugin-browser-security |  | Browser-specific security & XSS prevention. |
eslint-plugin-express-security |  | Express.js security hardening rules. |
eslint-plugin-lambda-security |  | AWS Lambda security best practices. |
eslint-plugin-nestjs-security |  | NestJS security rules & patterns. |
eslint-plugin-mongodb-security |  | MongoDB security best practices. |
eslint-plugin-vercel-ai-security |  | Vercel AI SDK security hardening. |
eslint-plugin-import-next |  | Next-gen import sorting & architecture. |
โญ Support & follow
If this plugin caught a real bug for you, star the repo โ stars are the signal that keeps the Interlace ESLint ecosystem maintained โ and follow the writeups on Dev.to for the benchmarks and security research behind these rules.
๐ License
MIT ยฉ Ofri Peretz
View README.md on GitHub โ