CVE-2026-111750

UNKNOWN 0.0

AIOHTTP: Pure-Python parser request smuggling

CVSS Score

0.0

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-444
Vendor	aio-libs
Product	aiohttp
Published	Oct 19, 2026

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Affected Versions

aio-libs / aiohttp

< 3.14.4

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/aio-libs/aiohttp/security/advisories/GHSA-pqxq-w44r-73xw github.com: https://github.com/aio-libs/aiohttp/commit/9b27347e61454d9f8ca2055f4c67a37dee336e83 github.com: https://github.com/aio-libs/aiohttp/releases/tag/v3.14.4