#35289: Chunked transfer encoding is not handled correctly by MultiPartParser
-------------------------------------+-------------------------------------
Reporter: Kyle Agronick | Owner:
| YashRaj1506
Type: Bug | Status: assigned
Component: HTTP handling | Version: dev
Severity: Normal | Resolution:
Keywords: transfer-encoding, | Triage Stage: Accepted
chunked, multi-part |
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
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Comment (by Sarah Boyce <42296566+sarahboyce@…>):
In [changeset:"2ec27eda3ba6c14f0856e6e3eb1df07c41fd95e6" 2ec27eda]:
{{{#!CommitTicketReference repository=""
revision="2ec27eda3ba6c14f0856e6e3eb1df07c41fd95e6"
[5.2.x] Fixed CVE-2026-5766 -- Enforced DATA_UPLOAD_MAX_MEMORY_SIZE in
MemoryFileUploadHandler on ASGI.
In ASGI deployments, Content-Length is not guaranteed to reflect the
actual request body size, so relying on it to gate memory allocation
allowed the limit to be bypassed. The handler now enforces
DATA_UPLOAD_MAX_MEMORY_SIZE regardless of the declared header value.
Thanks to Kyle Agronick for the report. Refs #35289.
Co-authored-by: Natalia <[email protected]>
Backport of 5a89e341bfc77dd67b7fd57b7091b6430558e1f4 from main.
}}}
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Ticket URL: <https://code.djangoproject.com/ticket/35289#comment:16>
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