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React vs FastAPI

Security & risk comparison · Updated June 2026

How does React compare to FastAPI on security, AI-readiness, and total cost of ownership? We scored both across 7 dimensions using NVD/NIST CVE data, GitHub metrics, and our scan of 10M+ sites.

Key finding

FastAPI scores 82/100 overall versus React's 71/100. FastAPI has 8 total CVEs compared to React's 20, giving it a smaller vulnerability surface. (Source: WebPulse framework scoring, NVD/NIST, July 2026)

71
React
Modern · JAVASCRIPT
vs
82
FastAPI
Modern · PYTHON
Dimension-by-dimension breakdown
security FastAPI
80
90
React
FastAPI
performance Tie
65
65
React
FastAPI
ecosystem FastAPI
82
85
React
FastAPI
ai readiness FastAPI
55
95
React
FastAPI
developer experience FastAPI
70
88
React
FastAPI
market trajectory React
90
70
React
FastAPI
cost of ownership FastAPI
55
75
React
FastAPI
Security details
Metric React FastAPI
Total CVEs 20 8
Critical CVEs 2 0
Exploited (KEV) 0 0
CVEs last year 3 2
Avg CVSS 4.5 3.5
Security score 80/100 90/100
Acceptable
React

React scores 72/100. Verdict: Acceptable.

Recommended
FastAPI

FastAPI scores 83/100. Verdict: Recommended.

Quick facts
React
Category: Frontend
Language: JAVASCRIPT
First release: 2013
Generation: Modern
Trend: Rising
Market share: 8.0%
FastAPI
Category: Backend
Language: PYTHON
First release: 2018
Generation: Modern
Trend: Rising
Market share: 0.6%
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Data sourced from NVD/NIST CVE database, GitHub API, and WebPulse framework scanner. Scores calculated using a 7-dimension model covering security, performance, ecosystem health, AI-readiness, developer experience, market trajectory, and cost of ownership. Updated June 2026.