CVE-2025-69223 HIGH

CVE-2025-69223: AIOHTTP's HTTP Parser auto_decompress feature is vulnerable to zip bomb

Vendor Aio-Libs
Product aiohttp
Weakness CWE-409
Published January 5, 2026
Last update June 30, 2026
View on NVD All CVEs

CVSS base score

7.5/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

What the vulnerability does

01Description

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Versions 3.13.2 and below allow a zip bomb to be used to execute a DoS against the AIOHTTP server. An attacker may be able to send a compressed request that when decompressed by AIOHTTP could exhaust the host's memory. This issue is fixed in version 3.13.3.

Key dates

02Disclosure timeline

January 5, 2026 CVE published
June 30, 2026 Record updated