CVE Vulnerabilities

CVE-2026-33033

Inefficient Algorithmic Complexity

Published: Apr 07, 2026 | Modified: Apr 13, 2026
CVSS 3.x
N/A
Source:
NVD
CVSS 2.x
RedHat/V2
RedHat/V3
5.3 MODERATE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Ubuntu
MEDIUM
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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.

Weakness

An algorithm in a product has an inefficient worst-case computational complexity that may be detrimental to system performance and can be triggered by an attacker, typically using crafted manipulations that ensure that the worst case is being reached.

Affected Software

NameVendorStart VersionEnd Version
DjangoDjangoproject4.2 (including)4.2.30 (excluding)
DjangoDjangoproject5.2 (including)5.2.13 (excluding)
DjangoDjangoproject6.0 (including)6.0.4 (excluding)
Python-djangoUbuntudevel*
Python-djangoUbuntuesm-infra-legacy/trusty*
Python-djangoUbuntuesm-infra-legacy/xenial*
Python-djangoUbuntuesm-infra/bionic*
Python-djangoUbuntuesm-infra/focal*
Python-djangoUbuntuesm-infra/xenial*
Python-djangoUbuntujammy*
Python-djangoUbuntunoble*
Python-djangoUbuntuquesting*
Python-djangoUbunturesolute*
Python-djangoUbuntuupstream*

References