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Astro vs Flask

Security & risk comparison · Updated June 2026

How does Astro compare to Flask 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)

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

Astro scores 84/100. Verdict: Recommended.

Acceptable
Flask

Flask scores 64/100. Verdict: Acceptable.

Quick facts
Astro
Category: Ssg
Language: JAVASCRIPT
First release: 2021
Generation: Modern
Trend: Rising
Market share: 0.4%
Flask
Category: Backend
Language: PYTHON
First release: 2010
Generation: Modern
Trend: Stable
Market share: 0.5%
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July 3, 2026
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July 2, 2026
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June 26, 2026
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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.