Vulnerability 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. `MultiPartParser` allows remote attackers to degrade performance by submitting multipart uploads with `Content-Transfer-Encoding: base64` including excessive whitespace. 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 Seokchan Yoon for reporting this issue.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Djangoproject | Django | >= 4.2, < 4.2.30 |
Related Weaknesses (CWE)
References
- https://docs.djangoproject.com/en/dev/releases/security/PatchVendor Advisory
- https://groups.google.com/g/django-announceRelease Notes
- https://www.djangoproject.com/weblog/2026/apr/07/security-releases/PatchVendor Advisory
FAQ
What is CVE-2026-33033?
CVE-2026-33033 is a vulnerability with a CVSS score of 6.5 (MEDIUM). An issue was discovered in 6.0 before 6.0.4, 5.2 before 5.2.13, and 4.2 before 4.2.30. `MultiPartParser` allows remote attackers to degrade performance by submitting multipart uploads with `Content-Tr...
How severe is CVE-2026-33033?
CVE-2026-33033 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-33033?
Check the references section above for vendor advisories and patch information. Affected products include: Djangoproject Django.