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CVE PROGRAM SOURCE RECORD2.7 Low

CVE-2026-34517

AIOHTTP: Late size enforcement for non-file multipart fields causes memory DoS

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Status
Published
Published
Updated
Assigning organization
GitHub_M

Description

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, for some multipart form fields, aiohttp read the entire field into memory before checking client_max_size. This issue has been patched in version 3.13.4.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

aio-libs aiohttp

  • < 3.13.4affected

References