Description


AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Versions 3.13.2 and below of the Python HTTP parser may allow a request smuggling attack with the presence of non-ASCII characters. If a pure Python version of AIOHTTP is installed (i.e. without the usual C extensions) or AIOHTTP_NO_EXTENSIONS is enabled, then an attacker may be able to execute a request smuggling attack to bypass certain firewalls or proxy protections. This issue is fixed in version 3.13.3.

Related CPE's


Vulnerable

Weaknesses



CWE-444

CVSS impact metrics


CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

6.5 · Medium

Information


Source identifier

[email protected]

Vulnerability status

Analyzed

Published

2026-01-05T23:15:40.697Z

1 week ago

Last modified

2026-01-14T19:12:27.570Z

1 hour ago