CVE-2024-52303

CVE-2024-52303 · aiohttp memory leak when middleware is enabled when requesting a resource with a non-allowed method

This page contains facts from public vulnerability sources. Check the original advisory before updating.

aiohttp is an asynchronous HTTP client/server framework for asyncio and Python. In versions starting with 3.10.6 and prior to 3.10.11, a memory leak can occur when a request produces a MatchInfoError. This was caused by adding an entry to a cache on each request, due to the building of each MatchInfoError producing a unique cache entry. An attacker may be able to exhaust the memory resources of a server by sending a substantial number (100,000s to millions) of such requests. Those who use any middlewares with aiohttp.web should upgrade to version 3.10.11 to receive a patch.

CVSS 8.7 · High · EPSS 0.6% · Fix available

Published

2024-11-18T20:08:15.387Z

Updated

2024-11-19T14:45:27.044Z

Stack: system · python

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