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CVE-2026-34525

MEDIUM CVSS: 5.3 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, multiple Host headers were allowed in aiohttp. This issue has been patched in version 3.13.4.

Affected Platforms

Aiohttp Aiohttp

Weakness Type

CWE-20, CWE-444

References