CVE-2026-111748

UNKNOWN 0.0

AIOHTTP: Absolute-form request targets can spoof Request.scheme

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, an attacker can send an absolute-form request that causes Request.scheme to use attacker-controlled request-target scheme data instead of the connection protocol. Applications that use Request.scheme for security decisions can consequently be tricked into treating an unencrypted connection as encrypted or an encrypted connection as unencrypted. This issue is fixed in version 3.14.4.

CWE	CWE-807
Vendor	aio-libs
Product	aiohttp
Published	Oct 19, 2026
Last Updated	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-f9xw-jh8m-3mwq github.com: https://github.com/aio-libs/aiohttp/commit/6d4e7b01f9b951aa084a75d7356e907d4ee80411 github.com: https://github.com/aio-libs/aiohttp/releases/tag/v3.14.4