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Django vs Ruby on Rails

Security & risk comparison · Updated June 2026

How does Django 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 scan of 10M+ sites.

Key finding

Django scores 67/100 overall versus Ruby on Rails's 64/100. Django has 120 total CVEs compared to Ruby on Rails's 180, giving it a smaller vulnerability surface. (Source: WebPulse framework scoring, NVD/NIST, July 2026)

67
Django
Modern · PYTHON
vs
64
Ruby on Rails
Modern · RUBY
Dimension-by-dimension breakdown
security Django
68
62
Django
Ruby on Rails
performance Tie
65
65
Django
Ruby on Rails
ecosystem Django
75
70
Django
Ruby on Rails
ai readiness Django
75
72
Django
Ruby on Rails
developer experience Tie
70
70
Django
Ruby on Rails
market trajectory Django
55
50
Django
Ruby on Rails
cost of ownership Tie
60
60
Django
Ruby on Rails
Security details
Metric Django Ruby on Rails
Total CVEs 120 180
Critical CVEs 12 18
Exploited (KEV) 1 2
CVEs last year 12 15
Avg CVSS 5.5 5.8
Security score 68/100 62/100
Acceptable
Django

Django scores 68/100. Verdict: Acceptable.

Acceptable
Ruby on Rails

Ruby on Rails scores 65/100. Verdict: Acceptable.

Quick facts
Django
Category: Backend
Language: PYTHON
First release: 2005
Generation: Modern
Trend: Rising
Market share: 1.2%
Ruby on Rails
Category: Backend
Language: RUBY
First release: 2004
Generation: Modern
Trend: Stable
Market share: 0.8%
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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.