# CVE-2025-14550

## Summary

- **CVE ID:** CVE-2025-14550
- **Severity:** HIGH
- **CVSS Score:** 7.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
- **CWE:** CWE-407
- **Published:** Feb 3, 2026
- **Last Modified:** Sep 17, 2026

## Description

An issue was discovered in 6.0 before 6.0.2, 5.2 before 5.2.11, and 4.2 before 4.2.28.
`ASGIRequest` allows a remote attacker to cause a potential denial-of-service via a crafted request with multiple duplicate headers.
Earlier, unsupported Django series (such as 5.0.x, 4.1.x, and 3.2.x) were not evaluated and may also be affected.
Django would like to thank Jiyong Yang for reporting this issue.

## Affected Products

- djangoproject — Django (6.0)
- djangoproject — Django (6.0.2)
- djangoproject — Django (5.2)
- djangoproject — Django (5.2.11)
- djangoproject — Django (4.2)
- djangoproject — Django (4.2.28)
- djangoproject — asgiref (3)
- djangoproject — asgiref (3.11.1)

## References

- [CNA](https://docs.djangoproject.com/en/dev/releases/security/)
- [CNA](https://groups.google.com/g/django-announce)
- [CNA](https://www.djangoproject.com/weblog/2026/feb/03/security-releases/)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 1.03%
- **EPSS Percentile:** 62.1

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-18._