Resource exhaustion in Aio-Libs Aiohttp
CVE-2026-111066
AIOHTTP is an asynchronous HTTP client/server framework for asyncio and Python. From 2.0.0 until 3.14.4, multipart request processing can retain an unbounded number of open file descriptors. An unauthenticated attacker can consequently exhaust file descriptors with specially crafted multipart requests when a handler uses Request.post(). This issue is fixed in version 3.14.4.
Vulnerability class: DoS (Denial of Service)
Published · last modified .
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Aio-Libs Aiohttp — versions >= 2, < 3.14.4, >= 2.0.0, < 3.14.4