Vulnerability in Aio-Libs Aiohttp
CVE-2026-111750
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.4, the pure Python parser accepts ambiguous HTTP request framing. An unauthenticated attacker can consequently smuggle requests when an application uses AIOHTTP_NO_EXTENSIONS or otherwise runs without a standard wheel and an intermediary interprets the framing differently. This issue is fixed in version 3.14.4.
Vulnerability class: HTTP Request Smuggling
Published · last modified .
EPSS exploit prediction
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Affected products
- Aio-Libs Aiohttp — versions < 3.14.4