aiohttp has a memory leak when middleware is enabled when requesting a resource with a non-allowed method

CAO 7.5CVE-2024-52303 · GHSA-27mf-ghqm-j3j8 · PYSEC-2026-1096 · Công bố 18/11/2024 · cập nhật 17/06/2026

Tóm tắt nhanh

CVE-2024-52303 là lỗ hổng mức CAO (CVSS 7.5) ảnh hưởng aiohttp, aiohttp (aiohttp).
Xác suất bị khai thác trong 30 ngày tới (EPSS): 0.59%, cao hơn 48.3% các lỗ hổng khác.
Cách xử lý: cập nhật lên 3.10.11 hoặc mới hơn.

Gói / sản phẩm	Phiên bản bị ảnh hưởng	Phiên bản đã vá
aiohttp PyPI	`≥ 3.10.6, < 3.10.11`	`3.10.11`
aiohttp aiohttp	`≥ 3.10.6, < 3.10.11`	`3.10.11`

Mô tả

Summary

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.

Impact

If the user is making use of any middlewares with aiohttp.web then it is advisable to upgrade immediately.

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.

Patch: https://github.com/aio-libs/aiohttp/commit/bc15db61615079d1b6327ba42c682f758fa96936

Mô tả của NVD

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.