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Spring Boot vs FastAPI

Security & risk comparison · Updated June 2026

How does Spring Boot compare to FastAPI 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

FastAPI scores 82/100 overall versus Spring Boot's 65/100. FastAPI has 8 total CVEs compared to Spring Boot's 250, giving it a smaller vulnerability surface. (Source: WebPulse framework scoring, NVD/NIST, July 2026)

65
Spring Boot
Modern · JAVA
vs
82
FastAPI
Modern · PYTHON
Dimension-by-dimension breakdown
security FastAPI
55
90
Spring Boot
FastAPI
performance Tie
65
65
Spring Boot
FastAPI
ecosystem FastAPI
72
85
Spring Boot
FastAPI
ai readiness FastAPI
80
95
Spring Boot
FastAPI
developer experience FastAPI
70
88
Spring Boot
FastAPI
market trajectory FastAPI
65
70
Spring Boot
FastAPI
cost of ownership FastAPI
60
75
Spring Boot
FastAPI
Security details
Metric Spring Boot FastAPI
Total CVEs 250 8
Critical CVEs 25 0
Exploited (KEV) 3 0
CVEs last year 30 2
Avg CVSS 6.0 3.5
Security score 55/100 90/100
Acceptable
Spring Boot

Spring Boot scores 66/100. Verdict: Acceptable.

Recommended
FastAPI

FastAPI scores 83/100. Verdict: Recommended.

Quick facts
Spring Boot
Category: Backend
Language: JAVA
First release: 2014
Generation: Modern
Trend: Rising
Market share: 2.0%
FastAPI
Category: Backend
Language: PYTHON
First release: 2018
Generation: Modern
Trend: Rising
Market share: 0.6%
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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.