EUVD-2026-19646
GHSA-5mf9-h53q-7mhq
Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Primary rating from NVD.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Lifecycle Timeline
5Blast Radius
ecosystem impact- 16 pypi packages depend on django (16 direct, 0 indirect)
Ecosystem-wide dependent count for version 6.0.
DescriptionCVE.org
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.
AnalysisAI
Django's MultiPartParser allows authenticated remote attackers to cause denial of service through performance degradation by submitting multipart uploads with Content-Transfer-Encoding: base64 and excessive whitespace. Affected versions include Django 6.0 before 6.0.4, 5.2 before 5.2.13, and 4.2 before 4.2.30, with unsupported series 5.0.x, 4.1.x, and 3.2.x potentially also vulnerable. The vulnerability has a CVSS 6.5 score reflecting high availability impact but requires authentication (PR:L) and is not actively exploited or publicly weaponized at analysis time.
Technical ContextAI
The vulnerability resides in Django's MultiPartParser component, which processes HTTP multipart/form-data requests commonly used for file uploads. The parser fails to efficiently handle Content-Transfer-Encoding: base64 headers combined with excessive whitespace characters, causing algorithmic performance degradation during parsing operations. This relates to CWE-407 (Inefficient Algorithmic Complexity), where an attacker can craft input that forces the parser into computationally expensive operations, consuming server resources and degrading responsiveness for legitimate users. The affected product is djangoproject:django across multiple major versions, with the vulnerability introduced in common code paths used by all affected releases.
RemediationAI
Upgrade to patched versions: Django 6.0.4 or later, Django 5.2.13 or later, or Django 4.2.30 or later. Users of unsupported series (5.0.x, 4.1.x, 3.2.x) should upgrade to a supported release. No mitigation for unpatched systems exists other than restricting authenticated access to multipart upload endpoints or disabling multipart upload functionality temporarily. Detailed patch and advisory information is available at https://www.djangoproject.com/weblog/2026/apr/07/security-releases/ and https://docs.djangoproject.com/en/dev/releases/security/.
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Same weakness CWE-407 – Inefficient Algorithmic Complexity
View allSame technique Information Disclosure
View allVendor StatusVendor
SUSE
Severity: Medium| Product | Status |
|---|---|
| openSUSE Tumbleweed | Fixed |
| SUSE Linux Enterprise Module for Package Hub 15 SP7 | Fixed |
| openSUSE Leap 15.6 | Fixed |
| SUSE Linux Enterprise Module for Package Hub 15 SP6 | Fixed |
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External POC / Exploit Code
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