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VULNERABILITIES

CVE-2026-33033 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: CISA-ADPCVSS-B:6.5 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://docs.djangoproject.com/en/dev/releases/security/ Django Software FoundationPatchVendor Advisory
https://groups.google.com/g/django-announce Django Software FoundationRelease Notes
https://www.djangoproject.com/weblog/2026/apr/07/security-releases/ Django Software FoundationPatchVendor Advisory

Weakness Enumeration

CWE-IDCWE NameSource
CWE-407Inefficient Algorithmic ComplexityDjango Software Foundation

Affected Products

ProductVersions
djangoproject django
>= 4.2, < 4.2.30
>= 5.2, < 5.2.13
>= 6.0, < 6.0.4

CPE

  • cpe:2.3:a:djangoproject:django:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

5 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-33033
NVD Published Date:
Apr 7, 2026
NVD Last Modified:
Jun 17, 2026
Source:
Django Software Foundation
CVE-2026-33033 Details - Not Deferred