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Security Advisories

CVE-2026-34517

NVD

https://nvd.nist.gov/vuln/detail/CVE-2026-34517

Severity

Unknown
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Summary

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

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.

References

Affected packages

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