CVE-2025-69230 LOW

CVE-2025-69230: AIOHTTP Vulnerable to Cookie Parser Warning Storm

Vendor Aio-Libs
Product aiohttp
Weakness CWE-779
Published January 5, 2026
Last update January 6, 2026

CVSS base score

2.7/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:U

What the vulnerability does

01Description

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. In versions 3.13.2 and below, reading multiple invalid cookies can lead to a logging storm. If the cookies attribute is accessed in an application, then an attacker may be able to trigger a storm of warning-level logs using a specially crafted Cookie header. This issue is fixed in 3.13.3.

Key dates

02Disclosure timeline

January 5, 2026 CVE published
January 6, 2026 Record updated