GHSA-5mf9-h53q-7mhq
Django has potential DoS via MultiPartParser through crafted multipart uploads
At a glance
- Published
- Updated
- CVE
- CVE-2026-33033
- Aliases
- BIT-django-2026-33033, PYSEC-2026-48
- CVSS_V3
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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.
Affected packages
| Package | Versions |
|---|---|
| PyPI · django | introduced 6.0, fixed 6.0.4 |
| PyPI · django | introduced 5.2, fixed 5.2.13 |
| PyPI · django | introduced 4.2, fixed 4.2.30 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-33033 ADVISORY
- https://docs.djangoproject.com/en/dev/releases/security WEB
- https://github.com/django/django PACKAGE
- https://github.com/pypa/advisory-database/tree/main/vulns/django/PYSEC-2026-48.yaml WEB
- https://groups.google.com/g/django-announce WEB
- https://www.djangoproject.com/weblog/2026/apr/07/security-releases WEB
Sources
| Source | Licence |
|---|---|
| OSV.dev | CC-BY 4.0 — GitHub Advisory Database |