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.
Metrics
Affected Vendors & Products
References
History
Tue, 07 Apr 2026 18:00:00 +0000
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Tue, 07 Apr 2026 15:15:00 +0000
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| 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. | |
| Title | Potential denial-of-service vulnerability in MultiPartParser via base64-encoded file upload | |
| Weaknesses | CWE-407 | |
| References |
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Status: PUBLISHED
Assigner: DSF
Published: 2026-04-07T14:22:48.624Z
Updated: 2026-04-07T15:21:27.926Z
Reserved: 2026-03-17T17:36:23.992Z
Link: CVE-2026-33033
Updated: 2026-04-07T15:21:23.777Z
Status : Received
Published: 2026-04-07T15:17:39.220
Modified: 2026-04-07T16:16:24.490
Link: CVE-2026-33033
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