[ CVE-2026-111063 · Published 19 Oct 2026 ]
AIOHTTP: Secure attribute not enforced for shared cookie
CVSS 6.3
EPSS <1%Fix available
[ Description ]Official description
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Prior to 3.14.4, the Secure attribute for a shared cookie is not enforced. An attacker can consequently cause a shared cookie marked Secure to be sent with an unencrypted request. This issue is fixed in version 3.14.4.
[ Fixes ]Fixes and patches
- aiohttp 3.14.4Fixed version · GitHub Advisories · pip package aiohttp: upgrade to 3.14.4 or later (affected <= 3.14.3)
[ Packages ]Affected open-source packages
- aiohttp pipAffected <= 3.14.3 · fixed in 3.14.4 · GHSA-494j-54xm-rwp3