---
id: CVE-2026-33034
aliases:
  - GHSA-933h-hp56-hf7m
  - BIT-django-2026-33034
  - PYSEC-2026-49
title: >-
  Django: SGI requests with a missing or understated `Content-Length` header
  could bypass the `DATA_UPLOAD_MAX_MEMORY_SIZE` limit
summary: >-
  Django: SGI requests with a missing or understated `Content-Length` header
  could bypass the `DATA_UPLOAD_MAX_MEMORY_SIZE` limit
severity: high
cvss: 7.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
vendor: django
product: django
ecosystem: pip
affected:
  - 'django >= 6.0, < 6.0.4'
  - 'django >= 5.2, < 5.2.13'
  - 'django >= 4.2, < 4.2.30'
patched:
  - django 6.0.4
  - django 5.2.13
  - django 4.2.30
published: '2026-04-07'
updated: '2026-09-10'
sourceUpdated: '2026-09-10T03:51:01.380175265Z'
source: OSV
sourceUrl: 'https://osv.dev/vulnerability/GHSA-933h-hp56-hf7m'
references:
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-33034'
  - url: 'https://docs.djangoproject.com/en/dev/releases/security'
  - url: 'https://github.com/django/django'
  - url: >-
      https://github.com/pypa/advisory-database/tree/main/vulns/django/PYSEC-2026-49.yaml
  - url: 'https://groups.google.com/g/django-announce'
  - url: 'https://www.djangoproject.com/weblog/2026/apr/07/security-releases'
tags:
  - osv
  - pip
epss: 0.00852
epssPercentile: 0.56428
ingestedAt: '2026-09-12T03:13:01.680Z'
---

## Overview

An issue was discovered in 6.0 before 6.0.4, 5.2 before 5.2.13, and 4.2 before 4.2.30. ASGI requests with a missing or understated `Content-Length` header could bypass the `DATA_UPLOAD_MAX_MEMORY_SIZE` limit when reading `HttpRequest.body`, allowing remote attackers to load an unbounded request body into memory.

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 Superior for reporting this issue.

## Affected packages

- `django >= 6.0, < 6.0.4`
- `django >= 5.2, < 5.2.13`
- `django >= 4.2, < 4.2.30`

## Remediation

Upgrade to a patched release:

- `django 6.0.4`
- `django 5.2.13`
- `django 4.2.30`