CVE-2026-33033
Published:April 07, 2026
Updated:April 20, 2026
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.
Affected Packages
django (CONDA):
Affected version(s) >=4.2 <4.2.30Fix Suggestion:
Update to version 4.2.30django (CONDA):
Affected version(s) >=5.2 <5.2.13Fix Suggestion:
Update to version 5.2.13django (CONDA):
Affected version(s) >=6.0 <6.0.4Fix Suggestion:
Update to version 6.0.4https://github.com/django/django.git (GITHUB):
Affected version(s) >=5.2 <5.2.13Fix Suggestion:
Update to version 5.2.13https://github.com/django/django.git (GITHUB):
Affected version(s) >=4.2 <4.2.30Fix Suggestion:
Update to version 4.2.30https://github.com/django/django.git (GITHUB):
Affected version(s) >=6.0 <6.0.4Fix Suggestion:
Update to version 6.0.4Django (PYTHON):
Affected version(s) >=4.2 <4.2.30Fix Suggestion:
Update to version 4.2.30django (PYTHON):
Affected version(s) >=4.2 <4.2.30Fix Suggestion:
Update to version 4.2.30Django (PYTHON):
Affected version(s) >=6.0 <6.0.4Fix Suggestion:
Update to version 6.0.4Django (PYTHON):
Affected version(s) >=5.2 <5.2.13Fix Suggestion:
Update to version 5.2.13django (PYTHON):
Affected version(s) >=6.0 <6.0.4Fix Suggestion:
Update to version 6.0.4django (PYTHON):
Affected version(s) >=5.2 <5.2.13Fix Suggestion:
Update to version 5.2.13Related Resources (7)
Do you need more information?
Contact UsCVSS v4
Base Score:
7.1
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
6.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Weakness Type (CWE)
Inefficient Algorithmic Complexity
EPSS
Base Score:
0.13
