VULNERABILITY INTELLIGENCE

CVE-2025-69227

CVSS score7.5 HIGH
EPSS probability0.40%
CISA KEVNot currently listed
Published2026-01-06
Last modified2026-10-11
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Description

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Versions 3.13.2 and below allow for an infinite loop to occur when assert statements are bypassed, resulting in a DoS attack when processing a POST body. If optimizations are enabled (-O or PYTHONOPTIMIZE=1), and the application includes a handler that uses the Request.post() method, then an attacker may be able to execute a DoS attack with a specially crafted message. This issue is fixed in version 3.13.3.

Weakness classification

  • security-advisories@github.com: CWE-835

Primary references