Django vs Flask
Security & risk comparison · Updated June 2026
How does Django 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.
Django scores 67/100 overall versus Flask's 63/100. Django has 120 total CVEs compared to Flask's 30, though its larger ecosystem contributes to a higher CVE count. (Source: WebPulse framework scoring, NVD/NIST, July 2026)
| Metric | Django | Flask |
|---|---|---|
| Total CVEs | 120 | 30 |
| Critical CVEs | 12 | 3 |
| Exploited (KEV) | 1 | 0 |
| CVEs last year | 12 | 5 |
| Avg CVSS | 5.5 | 4.8 |
| Security score | 68/100 | 75/100 |
Django scores 68/100. Verdict: Acceptable.
Flask scores 64/100. Verdict: Acceptable.
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.