CVE-2021-21330

aiohttp is an asynchronous HTTP client/server framework for asyncio and
Python. In aiohttp before version 3.7.4 there is an open redirect
vulnerability. A maliciously crafted link to an aiohttp-based web-server
could redirect the browser to a different website. It is caused by a bug in
the aiohttp.web_middlewares.normalize_path_middleware middleware. This
security problem has been fixed in 3.7.4. Upgrade your dependency using pip
as follows “pip install aiohttp >= 3.7.4”. If upgrading is not an option
for you, a workaround can be to avoid using
aiohttp.web_middlewares.normalize_path_middleware in your applications.

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