{"id":"CVE-2021-21330","state":"PUBLISHED","title":"Open redirect vulnerability in aiohttp","description":"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.","publishedAt":"2021-02-26T02:15:15.000Z","updatedAt":"2024-08-03T18:09:15.080Z","severity":{"score":3.1,"label":"Low","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["aio-libs aiohttp"],"affected":[{"vendor":"aio-libs","product":"aiohttp","versions":[{"version":"< 3.7.4","status":"affected"}]}],"references":["https://github.com/aio-libs/aiohttp/security/advisories/GHSA-v6wp-4m6f-gcjg","https://github.com/aio-libs/aiohttp/commit/2545222a3853e31ace15d87ae0e2effb7da0c96b","https://github.com/aio-libs/aiohttp/blob/master/CHANGES.rst#374-2021-02-25","https://pypi.org/project/aiohttp/","https://www.debian.org/security/2021/dsa-4864","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JN3V7CZJRT4QFCVXB6LDPCJH7NAOFCA5/","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FU7ENI54JNEK3PHEFGCE46DGMFNTVU6L/","https://security.gentoo.org/glsa/202208-19"],"weaknesses":["CWE-601"],"ingestedAt":"2026-10-29T19:47:59.168Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2021/21xxx/CVE-2021-21330.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-21330","state":"PUBLISHED","datePublished":"2021-02-26T02:15:15.000Z","dateUpdated":"2024-08-03T18:09:15.080Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2020-12-22T00:00:00.000Z"},"containers":{"cna":{"title":"Open redirect vulnerability in aiohttp","descriptions":[{"lang":"en","value":"aiohttp is an asynchronous HTTP client/server framework for asyncio and Python. 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