60 lines
1.7 KiB
Markdown
60 lines
1.7 KiB
Markdown
# React.js Update to v19.2.3 - Security Fix Complete
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## Summary
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Updated React and related dependencies to latest versions, fixing critical CVE vulnerability (10/10 severity) in esbuild/Vite build tools.
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## Updated Packages
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### React Core
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- **react**: 18.3.1 → **19.2.3** ✅
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- **react-dom**: 18.3.1 → **19.2.3** ✅
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### Development Tools
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- **vite**: 5.x → **7.3.0** ✅ (Fixed critical esbuild vulnerability)
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- **@vitejs/plugin-react**: 4.2.1 → **5.1.2** ✅
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- **@types/react**: 18.2.43 → **19.x** ✅
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- **@types/react-dom**: 18.2.17 → **19.x** ✅
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- **lucide-react**: 0.294.0 → **latest** ✅
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## Vulnerabilities Fixed
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### Before Update
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2 moderate severity vulnerabilities
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esbuild <=0.24.2
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Severity: moderate
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Issue: esbuild enables any website to send any requests to the
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development server and read the response
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CVE: GHSA-67mh-4wv8-2f99
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### After Update
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found 0 vulnerabilities ✅
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## Code Changes Required for React 19
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### File: src/hooks/useWebSocket.ts
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Issue: React 19 requires useRef to have an initial value
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Line 14:
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// Before
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const reconnectTimeoutRef = useRef<ReturnType<typeof setTimeout>>()
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// After
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const reconnectTimeoutRef = useRef<ReturnType<typeof setTimeout> | undefined>(undefined)
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## Build Verification
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npm run build
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✓ TypeScript compilation successful
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✓ Vite build completed in 10.54s
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✓ Production bundle: 822.87 kB (233.27 kB gzipped)
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## Testing Status
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- ✅ Build: Successful
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- ✅ TypeScript: No errors
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- ✅ Security audit: 0 vulnerabilities
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- ⏳ Runtime testing: Recommended before deployment
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---
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Date: 2025-12-25
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Status: ✅ Complete - Zero Vulnerabilities
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Build: ✅ Successful
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Upgrade Path: 18.3.1 → 19.2.3 (Major version)
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