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CVE-2026-33034

Potential denial-of-service vulnerability in ASGI requests via memory upload limit bypass

Published: Apr 7, 2026Updated: Apr 13, 2026 Sources: CVE List NVD BDUCWE-770
NVD MITRE
7.5CVSSHIGH
EPSS Score
0.8%
Top 49.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-770

Affected Products

РЕД ОСООО «Ред Софт»
On-premOS
Operating Systems / linux-distro
UbuntuCanonical Ltd.
On-premOS
Operating Systems / linux-distro
DjangoDjango Software Foundation
LibraryLibrary
OSS Libraries / web-framework
DjangodjangoprojectOSS Libraries
djangodjangoprojectOSS Libraries
ооо «ред софт»commercialRUOperating Systemsaka red soft
canonical ltd.commercialGBOperating Systemsaka canonical
django software foundationoss-projectUSOSS Librariesaka django
djangoprojectoss-projectOSS Librariesaka django

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Impact
View detailed technique mapping

References

https://www.djangoproject.com/weblog/2026/apr/07/security-releases/
djangoproject.com
https://github.com/django/django/commit/953c238058c0ce387a1a41cb491bfc1875d73ad0
github.com
https://github.com/django/django/commit/393dbc53e848876fdba92fbf02e10ee6a6eace6b
github.com
and 8 more references View all →

Timeline

Published
Apr 7, 2026
Last Updated
Apr 13, 2026

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