CVE-2026-33033 (GCVE-0-2026-33033)

Vulnerability from cvelistv5 – Published: 2026-04-07 14:22 – Updated: 2026-04-07 15:21
VLAI?
Title
Potential denial-of-service vulnerability in MultiPartParser via base64-encoded file upload
Summary
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.
Severity ?
No CVSS data available.
CWE
  • CWE-407 - Inefficient Algorithmic Complexity
Assigner
DSF
References
Impacted products
Vendor Product Version
djangoproject Django Affected: 6.0 , < 6.0.4 (semver)
Unaffected: 6.0.4 (semver)
Affected: 5.2 , < 5.2.13 (semver)
Unaffected: 5.2.13 (semver)
Affected: 4.2 , < 4.2.30 (semver)
Unaffected: 4.2.30 (semver)
Create a notification for this product.
Date Public ?
2026-04-07 09:00
Credits
Seokchan Yoon Natalia Bidart Jacob Walls
Show details on NVD website
To clipboard 

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Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.