CVE-2026-111063

AIOHTTP: Secure attribute not enforced for shared cookie

State: Published
Severity: 6.3 Medium
Published: Oct 19, 2026
Updated: Oct 22, 2026
Reserved: Oct 15, 2026

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.

Scores

CVSS	Score	Vector	Source
4.0	6.3 Medium	CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N	GitHub_M

Weaknesses

CWE-311 Missing Encryption of Sensitive Data
CWE-1004 Sensitive Cookie Without 'HttpOnly' Flag

Affected Products

Product	Versions
aiohttpaio-libs	< 3.14.4Affected

References

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