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GHSA-933h-hp56-hf7m

Django: SGI requests with a missing or understated `Content-Length` header could bypass the `DATA_UPLOAD_MAX_MEMORY_SIZE` limit

Source: GitHub Advisory Database (reviewed) High CVE-2026-33034

Packages

EcosystemPackageAffectedFixed in
PyPI Django >= 6.0, < 6.0.4 6.0.4
PyPI Django >= 5.2, < 5.2.13 5.2.13
PyPI Django >= 4.2, < 4.2.30 4.2.30

Details

As written in the advisory (Markdown source, shown as plain text).

An issue was discovered in 6.0 before 6.0.4, 5.2 before 5.2.13, and 4.2 before 4.2.30. ASGI requests with a missing or understated `Content-Length` header could bypass the `DATA_UPLOAD_MAX_MEMORY_SIZE` limit when reading `HttpRequest.body`, allowing remote attackers to load an unbounded request body into memory. 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 Superior for reporting this issue.

References

External links from the advisory. They lead to third-party sites.