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Flask vs Gatsby

Security & risk comparison · Updated June 2026

How does Flask compare to Gatsby 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

Flask scores 63/100 overall versus Gatsby's 60/100. Flask has 30 total CVEs compared to Gatsby's 15, though its larger ecosystem contributes to a higher CVE count. (Source: WebPulse framework scoring, NVD/NIST, July 2026)

63
Flask
Modern · PYTHON
vs
60
Gatsby
Modern · JAVASCRIPT
Dimension-by-dimension breakdown
security Gatsby
75
78
Flask
Gatsby
performance Tie
65
65
Flask
Gatsby
ecosystem Flask
50
25
Flask
Gatsby
ai readiness Flask
70
60
Flask
Gatsby
developer experience Tie
70
70
Flask
Gatsby
market trajectory Flask
40
25
Flask
Gatsby
cost of ownership Gatsby
60
90
Flask
Gatsby
Security details
Metric Flask Gatsby
Total CVEs 30 15
Critical CVEs 3 1
Exploited (KEV) 0 0
CVEs last year 5 4
Avg CVSS 4.8 4.2
Security score 75/100 78/100
Acceptable
Flask

Flask scores 64/100. Verdict: Acceptable.

Acceptable
Gatsby

Gatsby scores 60/100. Verdict: Acceptable.

Quick facts
Flask
Category: Backend
Language: PYTHON
First release: 2010
Generation: Modern
Trend: Stable
Market share: 0.5%
Gatsby
Category: Ssg
Language: JAVASCRIPT
First release: 2015
Generation: Modern
Trend: Stable
Market share: 0.3%
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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.