# CVE-2026-5766

## Summary

- **CVE ID:** CVE-2026-5766
- **Severity:** MEDIUM
- **CVSS Score:** 6.3 (CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N)
- **CWE:** CWE-130
- **Published:** May 5, 2026
- **Last Modified:** May 6, 2026

## Description

An issue was discovered in 6.0 before 6.0.5 and 5.2 before 5.2.14.
ASGI requests with a missing or understated `Content-Length` header can bypass the `FILE_UPLOAD_MAX_MEMORY_SIZE` limit, potentially loading large files into memory and causing service degradation.
 
As a reminder, Django expects a limit to be configured at the web server level rather than solely relying on `FILE_UPLOAD_MAX_MEMORY_SIZE`.
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 Kyle Agronick for reporting this issue.

## Affected Products

- djangoproject — Django (6.0)
- djangoproject — Django (6.0.5)
- djangoproject — Django (5.2)
- djangoproject — Django (5.2.14)

## 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/may/05/security-releases/)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.42%
- **EPSS Percentile:** 35.7

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._