PyPi: Aiohttp

CVE-2021-21330

Safety vulnerability ID: 39659

This vulnerability was reviewed by experts

The information on this page was manually curated by our Cybersecurity Intelligence Team.

Created at Feb 26, 2021 Updated at Dec 18, 2024
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Advisory

Aiohttp 3.7.4 includes a fix for CVE-2021-21330: 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. A workaround can be to avoid using 'aiohttp.web_middlewares.normalize_path_middleware' in your applications.
https://github.com/aio-libs/aiohttp/security/advisories/GHSA-v6wp-4m6f-gcjg

Affected package

aiohttp

Latest version: 3.11.11

Async http client/server framework (asyncio)

Affected versions

Fixed versions

Vulnerability changelog

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. See CVE-2021-21330.


CONFIRM:https://github.com/aio-libs/aiohttp/security/advisories/GHSA-v6wp-4m6f-gcjg: https://github.com/aio-libs/aiohttp/security/advisories/GHSA-v6wp-4m6f-gcjg
MISC:https://github.com/aio-libs/aiohttp/blob/master/CHANGES.rst#374-2021-02-25: https://github.com/aio-libs/aiohttp/blob/master/CHANGES.rst#374-2021-02-25
MISC:https://github.com/aio-libs/aiohttp/commit/2545222a3853e31ace15d87ae0e2effb7da0c96b: https://github.com/aio-libs/aiohttp/commit/2545222a3853e31ace15d87ae0e2effb7da0c96b
MISC:https://pypi.org/project/aiohttp/: https://pypi.org/project/aiohttp/

Resources

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Severity Details

CVSS Base Score

MEDIUM 6.1

CVSS v3 Details

MEDIUM 6.1
Attack Vector (AV)
NETWORK
Attack Complexity (AC)
LOW
Privileges Required (PR)
NONE
User Interaction (UI)
REQUIRED
Scope (S)
CHANGED
Confidentiality Impact (C)
LOW
Integrity Impact (I)
LOW
Availability Availability (A)
NONE

CVSS v2 Details

MEDIUM 5.8
Access Vector (AV)
NETWORK
Access Complexity (AC)
MEDIUM
Authentication (Au)
NONE
Confidentiality Impact (C)
PARTIAL
Integrity Impact (I)
PARTIAL
Availability Impact (A)
NONE