GHSA-933h-hp56-hf7m
Django: SGI requests with a missing or understated `Content-Length` header could bypass the `DATA_UPLOAD_MAX_MEMORY_SIZE` limit
At a glance
- Published
- Updated
- CVE
- CVE-2026-33034
- Aliases
- BIT-django-2026-33034, PYSEC-2026-49
- CVSS_V3
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Description
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
| Package | Versions |
|---|---|
| PyPI · django | introduced 6.0, fixed 6.0.4 |
| PyPI · django | introduced 5.2, fixed 5.2.13 |
| PyPI · django | introduced 4.2, fixed 4.2.30 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-33034 ADVISORY
- https://docs.djangoproject.com/en/dev/releases/security WEB
- https://github.com/django/django PACKAGE
- https://github.com/pypa/advisory-database/tree/main/vulns/django/PYSEC-2026-49.yaml WEB
- https://groups.google.com/g/django-announce WEB
- https://www.djangoproject.com/weblog/2026/apr/07/security-releases WEB
Sources
| Source | Licence |
|---|---|
| OSV.dev | CC-BY 4.0 — GitHub Advisory Database |