CVE-2026-33034
Last modified
CVE-2026-33034 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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.. EPSS estimates a 0.77% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Djangoproject | Django | >= 4.2, < 4.2.30 |
| Djangoproject | Django | >= 5.2, < 5.2.13 |
| Djangoproject | Django | >= 6.0, < 6.0.4 |
References
- https://docs.djangoproject.com/en/dev/releases/security/Patch, Vendor Advisory
- https://groups.google.com/g/django-announceRelease Notes
- https://www.djangoproject.com/weblog/2026/apr/07/security-releases/Patch, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
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