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CVE-2026-33033 An issue was discovered in 6.0 before 6.0.4, 5.2 before 5.2.13, and 4.2 before 4.2.30

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 products and versions

Product Affected versions Fixed in
Django 6.0 6.0 → < 6.0.4 6.0.4
Django 5.2 5.2 → < 5.2.13 5.2.13
Django 4.2 4.2 → < 4.2.30 4.2.30

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