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Flask vs Astro

Security & risk comparison · Updated June 2026

How does Flask compare to Astro 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

Astro scores 84/100 overall versus Flask's 63/100. Astro has 3 total CVEs compared to Flask's 30, giving it a smaller vulnerability surface. (Source: WebPulse framework scoring, NVD/NIST, July 2026)

63
Flask
Modern · PYTHON
vs
84
Astro
Modern · JAVASCRIPT
Dimension-by-dimension breakdown
security Astro
75
95
Flask
Astro
performance Tie
65
65
Flask
Astro
ecosystem Astro
50
88
Flask
Astro
ai readiness Astro
70
92
Flask
Astro
developer experience Astro
70
78
Flask
Astro
market trajectory Astro
40
70
Flask
Astro
cost of ownership Astro
60
90
Flask
Astro
Security details
Metric Flask Astro
Total CVEs 30 3
Critical CVEs 3 0
Exploited (KEV) 0 0
CVEs last year 5 1
Avg CVSS 4.8 3.2
Security score 75/100 95/100
Acceptable
Flask

Flask scores 64/100. Verdict: Acceptable.

Recommended
Astro

Astro scores 84/100. Verdict: Recommended.

Quick facts
Flask
Category: Backend
Language: PYTHON
First release: 2010
Generation: Modern
Trend: Stable
Market share: 0.5%
Astro
Category: Ssg
Language: JAVASCRIPT
First release: 2021
Generation: Modern
Trend: Rising
Market share: 0.4%
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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.