VDB

CVE-2021-21330

CVE-2021-21330 PUBLISHED CVSS 6.099999904632568 MEDIUM

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.

EPSS 1.91% · 78.9th percentile

Risk Scores

CVSS 3.1
6.099999904632568
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS Score
1.91%
78.9th percentile

Affected Products

VendorProductVersions
Ubuntu:Pro:18.04:LTSpython-aiohttp0, 2.2.3-1build1, 2.2.3-2
Ubuntu:Pro:20.04:LTSpython-aiohttp3.5.4-1, 3.6.1-1, 3.5.4-1build1

Timeline

  • Feb 26, 2021 CVE Published
  • Feb 26, 2021 PoC Published
  • Apr 14, 2021 EPSS Score
  • Jun 23, 2021 EPSS Score
  • Oct 27, 2021 EPSS Score
  • Dec 29, 2021 EPSS Score
  • Jan 6, 2022 EPSS Score
  • Feb 4, 2022 EPSS Score
  • Apr 1, 2022 EPSS Score
  • May 4, 2022 EPSS Score
  • Jul 6, 2022 EPSS Score
  • Sep 8, 2022 EPSS Score
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