high7.5
CVE-2026-33034
Django: SGI requests with a missing or understated `Content-Length` header could bypass the `DATA_UPLOAD_MAX_MEMORY_SIZE` limit
Impact
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
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| pip | Django | >= 6.0, < 6.0.4 | 6.0.4 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Djangoproject | Django | from 4.2 before 4.2.30 from 5.2 before 5.2.13 from 6.0 before 6.0.4 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://docs.djangoproject.com/en/dev/releases/security/
- https://groups.google.com/g/django-announce
- https://www.djangoproject.com/weblog/2026/apr/07/security-releases/
- https://github.com/advisories/GHSA-933h-hp56-hf7m
- https://nvd.nist.gov/vuln/detail/CVE-2026-33034
- https://docs.djangoproject.com/en/dev/releases/security
- https://www.djangoproject.com/weblog/2026/apr/07/security-releases
- https://github.com/pypa/advisory-database/tree/main/vulns/django/PYSEC-2026-49.yaml