Denial Of Service (DoS)

aiohttp is vulnerable to a Denial of Service DoS. The vulnerability is due to improper handling of crafted requests in the Request.post method, which allows an attacker to exhaust server memory and freeze the AIOHTTP server during request processing...

CVE-2025-69227

A flaw was found in aiohttp, an asynchronous HTTP client/server framework for Python. A remote attacker could exploit this vulnerability by sending a specially crafted POST request to an application using the Request.post method, provided that Python optimizations are enabled. This could lead to ...

CVE-2025-69228 AIOHTTP vulnerable to denial of service through large payloads

AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Versions 3.13.2 and below allow a request to be crafted in such a way that an AIOHTTP server's memory fills up uncontrollably during processing. If an application includes a handler that uses the Request.post method, ...

PT-2026-1353

Name of the Vulnerable Software and Affected Versions AIOHTTP versions 3.13.2 and below Description AIOHTTP, an asynchronous HTTP client/server framework for asyncio and Python, is susceptible to a denial-of-service DoS attack. When optimizations are enabled using -O or PYTHONOPTIMIZE=1, and an...

PT-2026-1354

Name of the Vulnerable Software and Affected Versions AIOHTTP versions 3.13.2 and below Description AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. Versions 3.13.2 and below are susceptible to a denial of service condition. An attacker can craft a request that caus...