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CVE-2026-34516

HIGH CVSS: 7.5 Published: 2026-04-01 Modified: 2026-06-17

Description

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to version 3.13.4, a response with an excessive number of multipart headers may be allowed to use more memory than intended, potentially allowing a DoS vulnerability. This issue has been patched in version 3.13.4.

Affected Platforms

Aiohttp Aiohttp

Weakness Type

CWE-770

References