---
cve: "CVE-2026-5766"
severity: "MEDIUM"
cvss: 6.3
epss: "42%"
vendor: "djangoproject"
kev: false
exploited: false
published: "2026-05-05 16:16:17"
tags: [cve, security, medium]
source: tsecurity.de CVE-Dossier
exported: "2026-09-04T08:52:45+02:00"
---

# CVE-2026-5766

> 6.3 MEDIUM

## Beschreibung

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.

## CVSS-Vektor

```
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
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |

## Patch verfügbar (OSV)

- 024c26b1e77ea5b1b158265167ade47927a64c06 (Commit)
- 8f8ad09659d728423a00e0a3b5f16da5c3a38e24 (Commit)

## Referenzen

- <https://docs.djangoproject.com/en/dev/releases/security/>
- <https://groups.google.com/g/django-announce>
- <https://www.djangoproject.com/weblog/2026/may/05/security-releases/>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-5766) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_