React vs Ruby on Rails
Security & risk comparison · Updated October 2026
How does React compare to Ruby on Rails on security, AI-readiness, and total cost of ownership? We scored both across 7 dimensions using NVD/NIST CVE data, GitHub metrics, and our census of the Tranco top 100,000.
React scores 71/100 overall versus Ruby on Rails's 64/100. React has 20 total CVEs compared to Ruby on Rails's 180, giving it a smaller vulnerability surface. (Source: WebPulse framework scoring, NIST NVD and CISA KEV, updated October 2026)
Who actually runs React and Ruby on Rails
Share of sites with an identified platform, from WebPulse's scan of the Tranco top 100,000 and our Common Crawl census.
| Where | React | Ruby on Rails |
|---|---|---|
| Top 1,000 | 5.1% (11) | 3.3% (7) |
| Top 10,000 | 3.2% (81) | 3.3% (85) |
| Top 100,000 | 2.1% (573) | 3.0% (832) |
| Wider web | 0.8% | 0.9% |
Highest-ranked sites on React
- github.com#29
- ok.ru#314
- alibaba.com#316
- nike.com#637
- 2gis.com#640
Highest-ranked sites on Ruby on Rails
- www.gov.uk#308
- duolingo.com#457
- goodreads.com#463
- openstreetmap.org#579
- service.gov.uk#666
Detected from each homepage's HTML, headers and cookies in September 2026. Methodology
| Metric | React | Ruby on Rails |
|---|---|---|
| Total CVEs | 20 | 180 |
| Critical CVEs | 2 | 18 |
| Exploited (KEV) | 0 | 2 |
| CVEs last year | 3 | 15 |
| Avg CVSS | 4.5 | 5.8 |
| Security score | 80/100 | 62/100 |
React scores 72/100. Verdict: Acceptable.
Ruby on Rails scores 65/100. Verdict: Acceptable.
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 October 2026.