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PYSEC-2021-76
Vulnerability from pysec - Published: 2021-02-26 03:15 - Updated: 2021-03-26 20:01
VLAI
Details
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.
Impacted products
| Name | purl | aiohttp | pkg:pypi/aiohttp |
|---|
Aliases
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "aiohttp",
"purl": "pkg:pypi/aiohttp"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2545222a3853e31ace15d87ae0e2effb7da0c96b"
}
],
"repo": "https://github.com/aio-libs/aiohttp",
"type": "GIT"
},
{
"events": [
{
"introduced": "0"
},
{
"fixed": "3.7.4"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.1",
"0.2",
"0.3",
"0.4",
"0.4.1",
"0.4.2",
"0.4.3",
"0.4.4",
"0.5.0",
"0.6.0",
"0.6.1",
"0.6.2",
"0.6.3",
"0.6.4",
"0.6.5",
"0.7.0",
"0.7.1",
"0.7.2",
"0.7.3",
"0.8.0",
"0.8.1",
"0.8.2",
"0.8.3",
"0.8.4",
"0.9.0",
"0.9.1",
"0.9.2",
"0.9.3",
"0.10.0",
"0.10.1",
"0.10.2",
"0.11.0",
"0.12.0",
"0.13.0",
"0.13.1",
"0.14.0",
"0.14.1",
"0.14.2",
"0.14.3",
"0.14.4",
"0.15.0",
"0.15.1",
"0.15.2",
"0.15.3",
"0.16.0",
"0.16.1",
"0.16.2",
"0.16.3",
"0.16.4",
"0.16.5",
"0.16.6",
"0.17.0",
"0.17.1",
"0.17.2",
"0.17.3",
"0.17.4",
"0.18.0",
"0.18.1",
"0.18.2",
"0.18.3",
"0.18.4",
"0.19.0",
"0.20.0",
"0.20.1",
"0.20.2",
"0.21.0",
"0.21.1",
"0.21.2",
"0.21.4",
"0.21.5",
"0.21.6",
"0.22.0a0",
"0.22.0b0",
"0.22.0b1",
"0.22.0b2",
"0.22.0b3",
"0.22.0b4",
"0.22.0b5",
"0.22.0b6",
"0.22.0",
"0.22.1",
"0.22.2",
"0.22.3",
"0.22.4",
"0.22.5",
"1.0.0",
"1.0.1",
"1.0.2",
"1.0.3",
"1.0.5",
"1.1.0",
"1.1.1",
"1.1.2",
"1.1.3",
"1.1.4",
"1.1.5",
"1.1.6",
"1.2.0",
"1.3.0",
"1.3.1",
"1.3.2",
"1.3.3",
"1.3.4",
"1.3.5",
"2.0.0rc1",
"2.0.0",
"2.0.1",
"2.0.2",
"2.0.3",
"2.0.4",
"2.0.5",
"2.0.6",
"2.0.7",
"2.1.0",
"2.2.0",
"2.2.1",
"2.2.2",
"2.2.3",
"2.2.4",
"2.2.5",
"2.3.0a1",
"2.3.0a2",
"2.3.0a3",
"2.3.0a4",
"2.3.0",
"2.3.1a1",
"2.3.1",
"2.3.2b2",
"2.3.2b3",
"2.3.2",
"2.3.3",
"2.3.4",
"2.3.5",
"2.3.6",
"2.3.7",
"2.3.8",
"2.3.9",
"2.3.10",
"3.0.0b0",
"3.0.0b1",
"3.0.0b2",
"3.0.0b3",
"3.0.0b4",
"3.0.0",
"3.0.1",
"3.0.2",
"3.0.3",
"3.0.4",
"3.0.5",
"3.0.6",
"3.0.7",
"3.0.8",
"3.0.9",
"3.1.0",
"3.1.1",
"3.1.2",
"3.1.3",
"3.2.0",
"3.2.1",
"3.3.0a0",
"3.3.0",
"3.3.1",
"3.3.2a0",
"3.3.2",
"3.4.0a0",
"3.4.0a3",
"3.4.0b1",
"3.4.0b2",
"3.4.0",
"3.4.1",
"3.4.2",
"3.4.3",
"3.4.4",
"3.5.0a1",
"3.5.0b1",
"3.5.0b2",
"3.5.0b3",
"3.5.0",
"3.5.1",
"3.5.2",
"3.5.3",
"3.5.4",
"3.6.0a0",
"3.6.0a1",
"3.6.0a2",
"3.6.0a3",
"3.6.0a4",
"3.6.0a5",
"3.6.0a6",
"3.6.0a7",
"3.6.0a8",
"3.6.0a9",
"3.6.0a11",
"3.6.0a12",
"3.6.0b0",
"3.6.0",
"3.6.1b3",
"3.6.1b4",
"3.6.1",
"3.6.2a0",
"3.6.2a1",
"3.6.2a2",
"3.6.2",
"3.6.3",
"3.7.0b0",
"3.7.0b1",
"3.7.0",
"3.7.1",
"3.7.2",
"3.7.3"
]
}
],
"aliases": [
"CVE-2021-21330",
"GHSA-v6wp-4m6f-gcjg"
],
"details": "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 \u003e= 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.",
"id": "PYSEC-2021-76",
"modified": "2021-03-26T20:01:00Z",
"published": "2021-02-26T03:15:00Z",
"references": [
{
"type": "FIX",
"url": "https://github.com/aio-libs/aiohttp/commit/2545222a3853e31ace15d87ae0e2effb7da0c96b"
},
{
"type": "WEB",
"url": "https://github.com/aio-libs/aiohttp/blob/master/CHANGES.rst#374-2021-02-25"
},
{
"type": "PACKAGE",
"url": "https://pypi.org/project/aiohttp/"
},
{
"type": "ADVISORY",
"url": "https://github.com/aio-libs/aiohttp/security/advisories/GHSA-v6wp-4m6f-gcjg"
},
{
"type": "ADVISORY",
"url": "https://www.debian.org/security/2021/dsa-4864"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JN3V7CZJRT4QFCVXB6LDPCJH7NAOFCA5/"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FU7ENI54JNEK3PHEFGCE46DGMFNTVU6L/"
}
]
}
BREW-RAWDOG-CVE-2021-21330 (GHSA-V6WP-4M6F-GCJG)
Vulnerability from osv_homebrew – Published: 2026-08-13 17:32 – Updated: 2026-09-10 01:04 – Source website
VLAI
Summary
`aiohttp` Open Redirect vulnerability (`normalize_path_middleware` middleware)
Details
Impact
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.
Patches
This security problem has been fixed in v3.7.4. Upgrade your dependency as follows:
[pip install aiohttp >= 3.7.4]
Workarounds
If upgrading is not an option for you, a workaround can be to avoid using aiohttp.web_middlewares.normalize_path_middleware in your applications.
References
For more information
If you have any questions or comments about this advisory: * Open an issue in the aiohttp repo * Email us at wk+aio-libs-security@sydorenko.org.ua and/or andrew.svetlov+aio-libs-security@gmail.com
Credit: Jelmer Vernooij and Beast Glatisant.
Severity
References
{
"affected": [
{
"ecosystem_specific": {
"fix": "bump",
"range_state": "fixed",
"resource": "aiohttp",
"resource_purl": "pkg:pypi/aiohttp@3.14.3",
"upstream_fixed_in": "3.7.4"
},
"package": {
"ecosystem": "Homebrew",
"name": "rawdog",
"purl": "pkg:brew/rawdog"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.1.6_25"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"database_specific": {
"confidence": "high",
"source": "matched",
"strategy": "registry",
"upstream_evidence": [
{
"ecosystem": "PyPI",
"key": "pkg:pypi/aiohttp@3.14.3",
"name": "aiohttp",
"resource": "aiohttp",
"strategy": "registry",
"subject_version": "3.14.3"
}
]
},
"details": "### Impact\n\nOpen redirect vulnerability \u2014 a maliciously crafted link to an aiohttp-based web-server could redirect the browser to a different website.\n\nIt is caused by a bug in the `aiohttp.web_middlewares.normalize_path_middleware` middleware.\n\n### Patches\n\nThis security problem has been fixed in v3.7.4. Upgrade your dependency as follows:\n[`pip install aiohttp \u003e= 3.7.4`]\n\n### Workarounds\n\nIf upgrading is not an option for you, a workaround can be to avoid using `aiohttp.web_middlewares.normalize_path_middleware` in your applications.\n\n### References\n\n* [aiohttp @ PyPI]\n* [GHSA-v6wp-4m6f-gcjg]\n* [OWASP page on open redirects]\n\n### For more information\n\nIf you have any questions or comments about this advisory:\n* Open an issue in the [aiohttp repo](https://github.com/aio-libs/aiohttp/issues/new/choose)\n* Email us at wk+aio-libs-security@sydorenko.org.ua and/or andrew.svetlov+aio-libs-security@gmail.com\n\nCredit: [Jelmer Vernoo\u0133] and [Beast Glatisant].\n\n[aiohttp @ PyPI]: https://pypi.org/p/aiohttp\n[`pip install aiohttp \u003e= 3.7.4`]: https://pypi.org/project/aiohttp/3.7.4/\n[GHSA-v6wp-4m6f-gcjg]: https://github.com/aio-libs/aiohttp/security/advisories/GHSA-v6wp-4m6f-gcjg\n[OWASP page on open redirects]:\nhttps://cheatsheetseries.owasp.org/cheatsheets/Unvalidated_Redirects_and_Forwards_Cheat_Sheet.html\n\n[Jelmer Vernoo\u0133]: https://jelmer.uk\n[Beast Glatisant]: https://github.com/g147",
"id": "BREW-rawdog-CVE-2021-21330",
"modified": "2026-09-10T01:04:15Z",
"published": "2026-08-13T17:32:08Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/aio-libs/aiohttp/security/advisories/GHSA-v6wp-4m6f-gcjg"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-21330"
},
{
"type": "WEB",
"url": "https://github.com/aio-libs/aiohttp/commit/2545222a3853e31ace15d87ae0e2effb7da0c96b"
},
{
"type": "PACKAGE",
"url": "https://github.com/aio-libs/aiohttp"
},
{
"type": "WEB",
"url": "https://github.com/aio-libs/aiohttp/blob/master/CHANGES.rst#374-2021-02-25"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/aiohttp/PYSEC-2021-76.yaml"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FU7ENI54JNEK3PHEFGCE46DGMFNTVU6L"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JN3V7CZJRT4QFCVXB6LDPCJH7NAOFCA5"
},
{
"type": "WEB",
"url": "https://pypi.org/project/aiohttp"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202208-19"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2021/dsa-4864"
}
],
"schema_version": "1.7.3",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "`aiohttp` Open Redirect vulnerability (`normalize_path_middleware` middleware)",
"upstream": [
"GHSA-v6wp-4m6f-gcjg",
"CVE-2021-21330",
"PYSEC-2021-76"
]
}
BREW-SACAD-CVE-2021-21330 (GHSA-V6WP-4M6F-GCJG)
Vulnerability from osv_homebrew – Published: 2026-08-13 17:33 – Updated: 2026-09-10 01:10 – Source website
VLAI
Summary
`aiohttp` Open Redirect vulnerability (`normalize_path_middleware` middleware)
Details
Impact
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.
Patches
This security problem has been fixed in v3.7.4. Upgrade your dependency as follows:
[pip install aiohttp >= 3.7.4]
Workarounds
If upgrading is not an option for you, a workaround can be to avoid using aiohttp.web_middlewares.normalize_path_middleware in your applications.
References
For more information
If you have any questions or comments about this advisory: * Open an issue in the aiohttp repo * Email us at wk+aio-libs-security@sydorenko.org.ua and/or andrew.svetlov+aio-libs-security@gmail.com
Credit: Jelmer Vernooij and Beast Glatisant.
Severity
References
| URL | Type | ||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||||||||||||||
{
"affected": [
{
"ecosystem_specific": {
"fix": "bump",
"range_state": "fixed",
"resource": "aiohttp",
"resource_purl": "pkg:pypi/aiohttp@3.14.3",
"upstream_fixed_in": "3.7.4"
},
"package": {
"ecosystem": "Homebrew",
"name": "sacad",
"purl": "pkg:brew/sacad"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.8.3_7"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"database_specific": {
"confidence": "high",
"source": "matched",
"strategy": "registry",
"upstream_evidence": [
{
"ecosystem": "PyPI",
"key": "pkg:pypi/aiohttp@3.14.3",
"name": "aiohttp",
"resource": "aiohttp",
"strategy": "registry",
"subject_version": "3.14.3"
}
]
},
"details": "### Impact\n\nOpen redirect vulnerability \u2014 a maliciously crafted link to an aiohttp-based web-server could redirect the browser to a different website.\n\nIt is caused by a bug in the `aiohttp.web_middlewares.normalize_path_middleware` middleware.\n\n### Patches\n\nThis security problem has been fixed in v3.7.4. Upgrade your dependency as follows:\n[`pip install aiohttp \u003e= 3.7.4`]\n\n### Workarounds\n\nIf upgrading is not an option for you, a workaround can be to avoid using `aiohttp.web_middlewares.normalize_path_middleware` in your applications.\n\n### References\n\n* [aiohttp @ PyPI]\n* [GHSA-v6wp-4m6f-gcjg]\n* [OWASP page on open redirects]\n\n### For more information\n\nIf you have any questions or comments about this advisory:\n* Open an issue in the [aiohttp repo](https://github.com/aio-libs/aiohttp/issues/new/choose)\n* Email us at wk+aio-libs-security@sydorenko.org.ua and/or andrew.svetlov+aio-libs-security@gmail.com\n\nCredit: [Jelmer Vernoo\u0133] and [Beast Glatisant].\n\n[aiohttp @ PyPI]: https://pypi.org/p/aiohttp\n[`pip install aiohttp \u003e= 3.7.4`]: https://pypi.org/project/aiohttp/3.7.4/\n[GHSA-v6wp-4m6f-gcjg]: https://github.com/aio-libs/aiohttp/security/advisories/GHSA-v6wp-4m6f-gcjg\n[OWASP page on open redirects]:\nhttps://cheatsheetseries.owasp.org/cheatsheets/Unvalidated_Redirects_and_Forwards_Cheat_Sheet.html\n\n[Jelmer Vernoo\u0133]: https://jelmer.uk\n[Beast Glatisant]: https://github.com/g147",
"id": "BREW-sacad-CVE-2021-21330",
"modified": "2026-09-10T01:10:54Z",
"published": "2026-08-13T17:33:32Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/aio-libs/aiohttp/security/advisories/GHSA-v6wp-4m6f-gcjg"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-21330"
},
{
"type": "WEB",
"url": "https://github.com/aio-libs/aiohttp/commit/2545222a3853e31ace15d87ae0e2effb7da0c96b"
},
{
"type": "PACKAGE",
"url": "https://github.com/aio-libs/aiohttp"
},
{
"type": "WEB",
"url": "https://github.com/aio-libs/aiohttp/blob/master/CHANGES.rst#374-2021-02-25"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/aiohttp/PYSEC-2021-76.yaml"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FU7ENI54JNEK3PHEFGCE46DGMFNTVU6L"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JN3V7CZJRT4QFCVXB6LDPCJH7NAOFCA5"
},
{
"type": "WEB",
"url": "https://pypi.org/project/aiohttp"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202208-19"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2021/dsa-4864"
}
],
"schema_version": "1.7.3",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "`aiohttp` Open Redirect vulnerability (`normalize_path_middleware` middleware)",
"upstream": [
"GHSA-v6wp-4m6f-gcjg",
"CVE-2021-21330",
"PYSEC-2021-76"
]
}
BREW-SCOUTSUITE-CVE-2021-21330 (GHSA-V6WP-4M6F-GCJG)
Vulnerability from osv_homebrew – Published: 2026-08-13 17:34 – Updated: 2026-09-10 01:11 – Source website
VLAI
Summary
`aiohttp` Open Redirect vulnerability (`normalize_path_middleware` middleware)
Details
Impact
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.
Patches
This security problem has been fixed in v3.7.4. Upgrade your dependency as follows:
[pip install aiohttp >= 3.7.4]
Workarounds
If upgrading is not an option for you, a workaround can be to avoid using aiohttp.web_middlewares.normalize_path_middleware in your applications.
References
For more information
If you have any questions or comments about this advisory: * Open an issue in the aiohttp repo * Email us at wk+aio-libs-security@sydorenko.org.ua and/or andrew.svetlov+aio-libs-security@gmail.com
Credit: Jelmer Vernooij and Beast Glatisant.
Severity
References
| URL | Type | ||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||||||||||||||
{
"affected": [
{
"ecosystem_specific": {
"fix": "bump",
"range_state": "fixed",
"resource": "aiohttp",
"resource_purl": "pkg:pypi/aiohttp@3.14.3",
"upstream_fixed_in": "3.7.4"
},
"package": {
"ecosystem": "Homebrew",
"name": "scoutsuite",
"purl": "pkg:brew/scoutsuite"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "5.14.0_16"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"database_specific": {
"confidence": "high",
"source": "matched",
"strategy": "registry",
"upstream_evidence": [
{
"ecosystem": "PyPI",
"key": "pkg:pypi/aiohttp@3.14.3",
"name": "aiohttp",
"resource": "aiohttp",
"strategy": "registry",
"subject_version": "3.14.3"
}
]
},
"details": "### Impact\n\nOpen redirect vulnerability \u2014 a maliciously crafted link to an aiohttp-based web-server could redirect the browser to a different website.\n\nIt is caused by a bug in the `aiohttp.web_middlewares.normalize_path_middleware` middleware.\n\n### Patches\n\nThis security problem has been fixed in v3.7.4. Upgrade your dependency as follows:\n[`pip install aiohttp \u003e= 3.7.4`]\n\n### Workarounds\n\nIf upgrading is not an option for you, a workaround can be to avoid using `aiohttp.web_middlewares.normalize_path_middleware` in your applications.\n\n### References\n\n* [aiohttp @ PyPI]\n* [GHSA-v6wp-4m6f-gcjg]\n* [OWASP page on open redirects]\n\n### For more information\n\nIf you have any questions or comments about this advisory:\n* Open an issue in the [aiohttp repo](https://github.com/aio-libs/aiohttp/issues/new/choose)\n* Email us at wk+aio-libs-security@sydorenko.org.ua and/or andrew.svetlov+aio-libs-security@gmail.com\n\nCredit: [Jelmer Vernoo\u0133] and [Beast Glatisant].\n\n[aiohttp @ PyPI]: https://pypi.org/p/aiohttp\n[`pip install aiohttp \u003e= 3.7.4`]: https://pypi.org/project/aiohttp/3.7.4/\n[GHSA-v6wp-4m6f-gcjg]: https://github.com/aio-libs/aiohttp/security/advisories/GHSA-v6wp-4m6f-gcjg\n[OWASP page on open redirects]:\nhttps://cheatsheetseries.owasp.org/cheatsheets/Unvalidated_Redirects_and_Forwards_Cheat_Sheet.html\n\n[Jelmer Vernoo\u0133]: https://jelmer.uk\n[Beast Glatisant]: https://github.com/g147",
"id": "BREW-scoutsuite-CVE-2021-21330",
"modified": "2026-09-10T01:11:31Z",
"published": "2026-08-13T17:34:19Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/aio-libs/aiohttp/security/advisories/GHSA-v6wp-4m6f-gcjg"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-21330"
},
{
"type": "WEB",
"url": "https://github.com/aio-libs/aiohttp/commit/2545222a3853e31ace15d87ae0e2effb7da0c96b"
},
{
"type": "PACKAGE",
"url": "https://github.com/aio-libs/aiohttp"
},
{
"type": "WEB",
"url": "https://github.com/aio-libs/aiohttp/blob/master/CHANGES.rst#374-2021-02-25"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/aiohttp/PYSEC-2021-76.yaml"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FU7ENI54JNEK3PHEFGCE46DGMFNTVU6L"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JN3V7CZJRT4QFCVXB6LDPCJH7NAOFCA5"
},
{
"type": "WEB",
"url": "https://pypi.org/project/aiohttp"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202208-19"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2021/dsa-4864"
}
],
"schema_version": "1.7.3",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "`aiohttp` Open Redirect vulnerability (`normalize_path_middleware` middleware)",
"upstream": [
"GHSA-v6wp-4m6f-gcjg",
"CVE-2021-21330",
"PYSEC-2021-76"
]
}
BREW-SLITHER-ANALYZER-CV… (GHSA-V6WP-4M6F-GCJG)
Vulnerability from osv_homebrew – Published: 2026-08-13 17:34 – Updated: 2026-09-10 20:54 – Source website
VLAI
Summary
`aiohttp` Open Redirect vulnerability (`normalize_path_middleware` middleware)
Details
Impact
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.
Patches
This security problem has been fixed in v3.7.4. Upgrade your dependency as follows:
[pip install aiohttp >= 3.7.4]
Workarounds
If upgrading is not an option for you, a workaround can be to avoid using aiohttp.web_middlewares.normalize_path_middleware in your applications.
References
For more information
If you have any questions or comments about this advisory: * Open an issue in the aiohttp repo * Email us at wk+aio-libs-security@sydorenko.org.ua and/or andrew.svetlov+aio-libs-security@gmail.com
Credit: Jelmer Vernooij and Beast Glatisant.
Severity
References
| URL | Type | ||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||||||||||||||
{
"affected": [
{
"ecosystem_specific": {
"fix": "bump",
"range_state": "fixed",
"resource": "aiohttp",
"resource_purl": "pkg:pypi/aiohttp@3.14.3",
"upstream_fixed_in": "3.7.4"
},
"package": {
"ecosystem": "Homebrew",
"name": "slither-analyzer",
"purl": "pkg:brew/slither-analyzer"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.11.6"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"database_specific": {
"confidence": "high",
"source": "matched",
"strategy": "registry",
"upstream_evidence": [
{
"ecosystem": "PyPI",
"key": "pkg:pypi/aiohttp@3.14.3",
"name": "aiohttp",
"resource": "aiohttp",
"strategy": "registry",
"subject_version": "3.14.3"
}
]
},
"details": "### Impact\n\nOpen redirect vulnerability \u2014 a maliciously crafted link to an aiohttp-based web-server could redirect the browser to a different website.\n\nIt is caused by a bug in the `aiohttp.web_middlewares.normalize_path_middleware` middleware.\n\n### Patches\n\nThis security problem has been fixed in v3.7.4. Upgrade your dependency as follows:\n[`pip install aiohttp \u003e= 3.7.4`]\n\n### Workarounds\n\nIf upgrading is not an option for you, a workaround can be to avoid using `aiohttp.web_middlewares.normalize_path_middleware` in your applications.\n\n### References\n\n* [aiohttp @ PyPI]\n* [GHSA-v6wp-4m6f-gcjg]\n* [OWASP page on open redirects]\n\n### For more information\n\nIf you have any questions or comments about this advisory:\n* Open an issue in the [aiohttp repo](https://github.com/aio-libs/aiohttp/issues/new/choose)\n* Email us at wk+aio-libs-security@sydorenko.org.ua and/or andrew.svetlov+aio-libs-security@gmail.com\n\nCredit: [Jelmer Vernoo\u0133] and [Beast Glatisant].\n\n[aiohttp @ PyPI]: https://pypi.org/p/aiohttp\n[`pip install aiohttp \u003e= 3.7.4`]: https://pypi.org/project/aiohttp/3.7.4/\n[GHSA-v6wp-4m6f-gcjg]: https://github.com/aio-libs/aiohttp/security/advisories/GHSA-v6wp-4m6f-gcjg\n[OWASP page on open redirects]:\nhttps://cheatsheetseries.owasp.org/cheatsheets/Unvalidated_Redirects_and_Forwards_Cheat_Sheet.html\n\n[Jelmer Vernoo\u0133]: https://jelmer.uk\n[Beast Glatisant]: https://github.com/g147",
"id": "BREW-slither-analyzer-CVE-2021-21330",
"modified": "2026-09-10T20:54:13Z",
"published": "2026-08-13T17:34:41Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/aio-libs/aiohttp/security/advisories/GHSA-v6wp-4m6f-gcjg"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-21330"
},
{
"type": "WEB",
"url": "https://github.com/aio-libs/aiohttp/commit/2545222a3853e31ace15d87ae0e2effb7da0c96b"
},
{
"type": "PACKAGE",
"url": "https://github.com/aio-libs/aiohttp"
},
{
"type": "WEB",
"url": "https://github.com/aio-libs/aiohttp/blob/master/CHANGES.rst#374-2021-02-25"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/aiohttp/PYSEC-2021-76.yaml"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FU7ENI54JNEK3PHEFGCE46DGMFNTVU6L"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JN3V7CZJRT4QFCVXB6LDPCJH7NAOFCA5"
},
{
"type": "WEB",
"url": "https://pypi.org/project/aiohttp"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202208-19"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2021/dsa-4864"
}
],
"schema_version": "1.7.3",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "`aiohttp` Open Redirect vulnerability (`normalize_path_middleware` middleware)",
"upstream": [
"GHSA-v6wp-4m6f-gcjg",
"CVE-2021-21330",
"PYSEC-2021-76"
]
}
BREW-SNYK-AGENT-SCAN-CVE… (GHSA-V6WP-4M6F-GCJG)
Vulnerability from osv_homebrew – Published: 2026-08-13 17:35 – Updated: 2026-09-10 01:16 – Source website
VLAI
Summary
`aiohttp` Open Redirect vulnerability (`normalize_path_middleware` middleware)
Details
Impact
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.
Patches
This security problem has been fixed in v3.7.4. Upgrade your dependency as follows:
[pip install aiohttp >= 3.7.4]
Workarounds
If upgrading is not an option for you, a workaround can be to avoid using aiohttp.web_middlewares.normalize_path_middleware in your applications.
References
For more information
If you have any questions or comments about this advisory: * Open an issue in the aiohttp repo * Email us at wk+aio-libs-security@sydorenko.org.ua and/or andrew.svetlov+aio-libs-security@gmail.com
Credit: Jelmer Vernooij and Beast Glatisant.
Severity
References
| URL | Type | ||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||||||||||||||
{
"affected": [
{
"ecosystem_specific": {
"fix": "bump",
"range_state": "fixed",
"resource": "aiohttp",
"resource_purl": "pkg:pypi/aiohttp@3.14.3",
"upstream_fixed_in": "3.7.4"
},
"package": {
"ecosystem": "Homebrew",
"name": "snyk-agent-scan",
"purl": "pkg:brew/snyk-agent-scan"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.5.17"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"database_specific": {
"confidence": "high",
"source": "matched",
"strategy": "registry",
"upstream_evidence": [
{
"ecosystem": "PyPI",
"key": "pkg:pypi/aiohttp@3.14.3",
"name": "aiohttp",
"resource": "aiohttp",
"strategy": "registry",
"subject_version": "3.14.3"
}
]
},
"details": "### Impact\n\nOpen redirect vulnerability \u2014 a maliciously crafted link to an aiohttp-based web-server could redirect the browser to a different website.\n\nIt is caused by a bug in the `aiohttp.web_middlewares.normalize_path_middleware` middleware.\n\n### Patches\n\nThis security problem has been fixed in v3.7.4. Upgrade your dependency as follows:\n[`pip install aiohttp \u003e= 3.7.4`]\n\n### Workarounds\n\nIf upgrading is not an option for you, a workaround can be to avoid using `aiohttp.web_middlewares.normalize_path_middleware` in your applications.\n\n### References\n\n* [aiohttp @ PyPI]\n* [GHSA-v6wp-4m6f-gcjg]\n* [OWASP page on open redirects]\n\n### For more information\n\nIf you have any questions or comments about this advisory:\n* Open an issue in the [aiohttp repo](https://github.com/aio-libs/aiohttp/issues/new/choose)\n* Email us at wk+aio-libs-security@sydorenko.org.ua and/or andrew.svetlov+aio-libs-security@gmail.com\n\nCredit: [Jelmer Vernoo\u0133] and [Beast Glatisant].\n\n[aiohttp @ PyPI]: https://pypi.org/p/aiohttp\n[`pip install aiohttp \u003e= 3.7.4`]: https://pypi.org/project/aiohttp/3.7.4/\n[GHSA-v6wp-4m6f-gcjg]: https://github.com/aio-libs/aiohttp/security/advisories/GHSA-v6wp-4m6f-gcjg\n[OWASP page on open redirects]:\nhttps://cheatsheetseries.owasp.org/cheatsheets/Unvalidated_Redirects_and_Forwards_Cheat_Sheet.html\n\n[Jelmer Vernoo\u0133]: https://jelmer.uk\n[Beast Glatisant]: https://github.com/g147",
"id": "BREW-snyk-agent-scan-CVE-2021-21330",
"modified": "2026-09-10T01:16:38Z",
"published": "2026-08-13T17:35:48Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/aio-libs/aiohttp/security/advisories/GHSA-v6wp-4m6f-gcjg"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-21330"
},
{
"type": "WEB",
"url": "https://github.com/aio-libs/aiohttp/commit/2545222a3853e31ace15d87ae0e2effb7da0c96b"
},
{
"type": "PACKAGE",
"url": "https://github.com/aio-libs/aiohttp"
},
{
"type": "WEB",
"url": "https://github.com/aio-libs/aiohttp/blob/master/CHANGES.rst#374-2021-02-25"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/aiohttp/PYSEC-2021-76.yaml"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FU7ENI54JNEK3PHEFGCE46DGMFNTVU6L"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JN3V7CZJRT4QFCVXB6LDPCJH7NAOFCA5"
},
{
"type": "WEB",
"url": "https://pypi.org/project/aiohttp"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202208-19"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2021/dsa-4864"
}
],
"schema_version": "1.7.3",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "`aiohttp` Open Redirect vulnerability (`normalize_path_middleware` middleware)",
"upstream": [
"GHSA-v6wp-4m6f-gcjg",
"CVE-2021-21330",
"PYSEC-2021-76"
]
}
BREW-STREAMRIP-CVE-2021-21330 (GHSA-V6WP-4M6F-GCJG)
Vulnerability from osv_homebrew – Published: 2026-08-13 17:41 – Updated: 2026-09-10 01:23 – Source website
VLAI
Summary
`aiohttp` Open Redirect vulnerability (`normalize_path_middleware` middleware)
Details
Impact
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.
Patches
This security problem has been fixed in v3.7.4. Upgrade your dependency as follows:
[pip install aiohttp >= 3.7.4]
Workarounds
If upgrading is not an option for you, a workaround can be to avoid using aiohttp.web_middlewares.normalize_path_middleware in your applications.
References
For more information
If you have any questions or comments about this advisory: * Open an issue in the aiohttp repo * Email us at wk+aio-libs-security@sydorenko.org.ua and/or andrew.svetlov+aio-libs-security@gmail.com
Credit: Jelmer Vernooij and Beast Glatisant.
Severity
References
| URL | Type | ||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||||||||||||||
{
"affected": [
{
"ecosystem_specific": {
"fix": "bump",
"range_state": "fixed",
"resource": "aiohttp",
"resource_purl": "pkg:pypi/aiohttp@3.14.3",
"upstream_fixed_in": "3.7.4"
},
"package": {
"ecosystem": "Homebrew",
"name": "streamrip",
"purl": "pkg:brew/streamrip"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.1.0_12"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"database_specific": {
"confidence": "high",
"source": "matched",
"strategy": "registry",
"upstream_evidence": [
{
"ecosystem": "PyPI",
"key": "pkg:pypi/aiohttp@3.14.3",
"name": "aiohttp",
"resource": "aiohttp",
"strategy": "registry",
"subject_version": "3.14.3"
}
]
},
"details": "### Impact\n\nOpen redirect vulnerability \u2014 a maliciously crafted link to an aiohttp-based web-server could redirect the browser to a different website.\n\nIt is caused by a bug in the `aiohttp.web_middlewares.normalize_path_middleware` middleware.\n\n### Patches\n\nThis security problem has been fixed in v3.7.4. Upgrade your dependency as follows:\n[`pip install aiohttp \u003e= 3.7.4`]\n\n### Workarounds\n\nIf upgrading is not an option for you, a workaround can be to avoid using `aiohttp.web_middlewares.normalize_path_middleware` in your applications.\n\n### References\n\n* [aiohttp @ PyPI]\n* [GHSA-v6wp-4m6f-gcjg]\n* [OWASP page on open redirects]\n\n### For more information\n\nIf you have any questions or comments about this advisory:\n* Open an issue in the [aiohttp repo](https://github.com/aio-libs/aiohttp/issues/new/choose)\n* Email us at wk+aio-libs-security@sydorenko.org.ua and/or andrew.svetlov+aio-libs-security@gmail.com\n\nCredit: [Jelmer Vernoo\u0133] and [Beast Glatisant].\n\n[aiohttp @ PyPI]: https://pypi.org/p/aiohttp\n[`pip install aiohttp \u003e= 3.7.4`]: https://pypi.org/project/aiohttp/3.7.4/\n[GHSA-v6wp-4m6f-gcjg]: https://github.com/aio-libs/aiohttp/security/advisories/GHSA-v6wp-4m6f-gcjg\n[OWASP page on open redirects]:\nhttps://cheatsheetseries.owasp.org/cheatsheets/Unvalidated_Redirects_and_Forwards_Cheat_Sheet.html\n\n[Jelmer Vernoo\u0133]: https://jelmer.uk\n[Beast Glatisant]: https://github.com/g147",
"id": "BREW-streamrip-CVE-2021-21330",
"modified": "2026-09-10T01:23:27Z",
"published": "2026-08-13T17:41:09Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/aio-libs/aiohttp/security/advisories/GHSA-v6wp-4m6f-gcjg"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-21330"
},
{
"type": "WEB",
"url": "https://github.com/aio-libs/aiohttp/commit/2545222a3853e31ace15d87ae0e2effb7da0c96b"
},
{
"type": "PACKAGE",
"url": "https://github.com/aio-libs/aiohttp"
},
{
"type": "WEB",
"url": "https://github.com/aio-libs/aiohttp/blob/master/CHANGES.rst#374-2021-02-25"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/aiohttp/PYSEC-2021-76.yaml"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FU7ENI54JNEK3PHEFGCE46DGMFNTVU6L"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JN3V7CZJRT4QFCVXB6LDPCJH7NAOFCA5"
},
{
"type": "WEB",
"url": "https://pypi.org/project/aiohttp"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202208-19"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2021/dsa-4864"
}
],
"schema_version": "1.7.3",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "`aiohttp` Open Redirect vulnerability (`normalize_path_middleware` middleware)",
"upstream": [
"GHSA-v6wp-4m6f-gcjg",
"CVE-2021-21330",
"PYSEC-2021-76"
]
}
BREW-THEHARVESTER-CVE-20… (GHSA-V6WP-4M6F-GCJG)
Vulnerability from osv_homebrew – Published: 2026-08-13 17:43 – Updated: 2026-09-10 01:28 – Source website
VLAI
Summary
`aiohttp` Open Redirect vulnerability (`normalize_path_middleware` middleware)
Details
Impact
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.
Patches
This security problem has been fixed in v3.7.4. Upgrade your dependency as follows:
[pip install aiohttp >= 3.7.4]
Workarounds
If upgrading is not an option for you, a workaround can be to avoid using aiohttp.web_middlewares.normalize_path_middleware in your applications.
References
For more information
If you have any questions or comments about this advisory: * Open an issue in the aiohttp repo * Email us at wk+aio-libs-security@sydorenko.org.ua and/or andrew.svetlov+aio-libs-security@gmail.com
Credit: Jelmer Vernooij and Beast Glatisant.
Severity
References
| URL | Type | ||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||||||||||||||
{
"affected": [
{
"ecosystem_specific": {
"fix": "bump",
"range_state": "fixed",
"resource": "aiohttp",
"resource_purl": "pkg:pypi/aiohttp@3.14.0",
"upstream_fixed_in": "3.7.4"
},
"package": {
"ecosystem": "Homebrew",
"name": "theharvester",
"purl": "pkg:brew/theharvester"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "4.11.1_1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"database_specific": {
"confidence": "high",
"source": "matched",
"strategy": "registry",
"upstream_evidence": [
{
"ecosystem": "PyPI",
"key": "pkg:pypi/aiohttp@3.14.0",
"name": "aiohttp",
"resource": "aiohttp",
"strategy": "registry",
"subject_version": "3.14.0"
}
]
},
"details": "### Impact\n\nOpen redirect vulnerability \u2014 a maliciously crafted link to an aiohttp-based web-server could redirect the browser to a different website.\n\nIt is caused by a bug in the `aiohttp.web_middlewares.normalize_path_middleware` middleware.\n\n### Patches\n\nThis security problem has been fixed in v3.7.4. Upgrade your dependency as follows:\n[`pip install aiohttp \u003e= 3.7.4`]\n\n### Workarounds\n\nIf upgrading is not an option for you, a workaround can be to avoid using `aiohttp.web_middlewares.normalize_path_middleware` in your applications.\n\n### References\n\n* [aiohttp @ PyPI]\n* [GHSA-v6wp-4m6f-gcjg]\n* [OWASP page on open redirects]\n\n### For more information\n\nIf you have any questions or comments about this advisory:\n* Open an issue in the [aiohttp repo](https://github.com/aio-libs/aiohttp/issues/new/choose)\n* Email us at wk+aio-libs-security@sydorenko.org.ua and/or andrew.svetlov+aio-libs-security@gmail.com\n\nCredit: [Jelmer Vernoo\u0133] and [Beast Glatisant].\n\n[aiohttp @ PyPI]: https://pypi.org/p/aiohttp\n[`pip install aiohttp \u003e= 3.7.4`]: https://pypi.org/project/aiohttp/3.7.4/\n[GHSA-v6wp-4m6f-gcjg]: https://github.com/aio-libs/aiohttp/security/advisories/GHSA-v6wp-4m6f-gcjg\n[OWASP page on open redirects]:\nhttps://cheatsheetseries.owasp.org/cheatsheets/Unvalidated_Redirects_and_Forwards_Cheat_Sheet.html\n\n[Jelmer Vernoo\u0133]: https://jelmer.uk\n[Beast Glatisant]: https://github.com/g147",
"id": "BREW-theharvester-CVE-2021-21330",
"modified": "2026-09-10T01:28:32Z",
"published": "2026-08-13T17:43:26Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/aio-libs/aiohttp/security/advisories/GHSA-v6wp-4m6f-gcjg"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-21330"
},
{
"type": "WEB",
"url": "https://github.com/aio-libs/aiohttp/commit/2545222a3853e31ace15d87ae0e2effb7da0c96b"
},
{
"type": "PACKAGE",
"url": "https://github.com/aio-libs/aiohttp"
},
{
"type": "WEB",
"url": "https://github.com/aio-libs/aiohttp/blob/master/CHANGES.rst#374-2021-02-25"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/aiohttp/PYSEC-2021-76.yaml"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FU7ENI54JNEK3PHEFGCE46DGMFNTVU6L"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JN3V7CZJRT4QFCVXB6LDPCJH7NAOFCA5"
},
{
"type": "WEB",
"url": "https://pypi.org/project/aiohttp"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202208-19"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2021/dsa-4864"
}
],
"schema_version": "1.7.3",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "`aiohttp` Open Redirect vulnerability (`normalize_path_middleware` middleware)",
"upstream": [
"GHSA-v6wp-4m6f-gcjg",
"CVE-2021-21330",
"PYSEC-2021-76"
]
}
BREW-TWTXT-CVE-2021-21330 (GHSA-V6WP-4M6F-GCJG)
Vulnerability from osv_homebrew – Published: 2026-08-13 17:44 – Updated: 2026-09-10 01:31 – Source website
VLAI
Summary
`aiohttp` Open Redirect vulnerability (`normalize_path_middleware` middleware)
Details
Impact
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.
Patches
This security problem has been fixed in v3.7.4. Upgrade your dependency as follows:
[pip install aiohttp >= 3.7.4]
Workarounds
If upgrading is not an option for you, a workaround can be to avoid using aiohttp.web_middlewares.normalize_path_middleware in your applications.
References
For more information
If you have any questions or comments about this advisory: * Open an issue in the aiohttp repo * Email us at wk+aio-libs-security@sydorenko.org.ua and/or andrew.svetlov+aio-libs-security@gmail.com
Credit: Jelmer Vernooij and Beast Glatisant.
Severity
References
| URL | Type | ||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||||||||||||||
{
"affected": [
{
"ecosystem_specific": {
"fix": "bump",
"range_state": "fixed",
"resource": "aiohttp",
"resource_purl": "pkg:pypi/aiohttp@3.14.3",
"upstream_fixed_in": "3.7.4"
},
"package": {
"ecosystem": "Homebrew",
"name": "twtxt",
"purl": "pkg:brew/twtxt"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.3.1_11"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"database_specific": {
"confidence": "high",
"source": "matched",
"strategy": "registry",
"upstream_evidence": [
{
"ecosystem": "PyPI",
"key": "pkg:pypi/aiohttp@3.14.3",
"name": "aiohttp",
"resource": "aiohttp",
"strategy": "registry",
"subject_version": "3.14.3"
}
]
},
"details": "### Impact\n\nOpen redirect vulnerability \u2014 a maliciously crafted link to an aiohttp-based web-server could redirect the browser to a different website.\n\nIt is caused by a bug in the `aiohttp.web_middlewares.normalize_path_middleware` middleware.\n\n### Patches\n\nThis security problem has been fixed in v3.7.4. Upgrade your dependency as follows:\n[`pip install aiohttp \u003e= 3.7.4`]\n\n### Workarounds\n\nIf upgrading is not an option for you, a workaround can be to avoid using `aiohttp.web_middlewares.normalize_path_middleware` in your applications.\n\n### References\n\n* [aiohttp @ PyPI]\n* [GHSA-v6wp-4m6f-gcjg]\n* [OWASP page on open redirects]\n\n### For more information\n\nIf you have any questions or comments about this advisory:\n* Open an issue in the [aiohttp repo](https://github.com/aio-libs/aiohttp/issues/new/choose)\n* Email us at wk+aio-libs-security@sydorenko.org.ua and/or andrew.svetlov+aio-libs-security@gmail.com\n\nCredit: [Jelmer Vernoo\u0133] and [Beast Glatisant].\n\n[aiohttp @ PyPI]: https://pypi.org/p/aiohttp\n[`pip install aiohttp \u003e= 3.7.4`]: https://pypi.org/project/aiohttp/3.7.4/\n[GHSA-v6wp-4m6f-gcjg]: https://github.com/aio-libs/aiohttp/security/advisories/GHSA-v6wp-4m6f-gcjg\n[OWASP page on open redirects]:\nhttps://cheatsheetseries.owasp.org/cheatsheets/Unvalidated_Redirects_and_Forwards_Cheat_Sheet.html\n\n[Jelmer Vernoo\u0133]: https://jelmer.uk\n[Beast Glatisant]: https://github.com/g147",
"id": "BREW-twtxt-CVE-2021-21330",
"modified": "2026-09-10T01:31:48Z",
"published": "2026-08-13T17:44:53Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/aio-libs/aiohttp/security/advisories/GHSA-v6wp-4m6f-gcjg"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-21330"
},
{
"type": "WEB",
"url": "https://github.com/aio-libs/aiohttp/commit/2545222a3853e31ace15d87ae0e2effb7da0c96b"
},
{
"type": "PACKAGE",
"url": "https://github.com/aio-libs/aiohttp"
},
{
"type": "WEB",
"url": "https://github.com/aio-libs/aiohttp/blob/master/CHANGES.rst#374-2021-02-25"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/aiohttp/PYSEC-2021-76.yaml"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FU7ENI54JNEK3PHEFGCE46DGMFNTVU6L"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JN3V7CZJRT4QFCVXB6LDPCJH7NAOFCA5"
},
{
"type": "WEB",
"url": "https://pypi.org/project/aiohttp"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202208-19"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2021/dsa-4864"
}
],
"schema_version": "1.7.3",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "`aiohttp` Open Redirect vulnerability (`normalize_path_middleware` middleware)",
"upstream": [
"GHSA-v6wp-4m6f-gcjg",
"CVE-2021-21330",
"PYSEC-2021-76"
]
}
BREW-VDIRSYNCER-CVE-2021-21330 (GHSA-V6WP-4M6F-GCJG)
Vulnerability from osv_homebrew – Published: 2026-08-13 17:46 – Updated: 2026-09-10 01:32 – Source website
VLAI
Summary
`aiohttp` Open Redirect vulnerability (`normalize_path_middleware` middleware)
Details
Impact
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.
Patches
This security problem has been fixed in v3.7.4. Upgrade your dependency as follows:
[pip install aiohttp >= 3.7.4]
Workarounds
If upgrading is not an option for you, a workaround can be to avoid using aiohttp.web_middlewares.normalize_path_middleware in your applications.
References
For more information
If you have any questions or comments about this advisory: * Open an issue in the aiohttp repo * Email us at wk+aio-libs-security@sydorenko.org.ua and/or andrew.svetlov+aio-libs-security@gmail.com
Credit: Jelmer Vernooij and Beast Glatisant.
Severity
References
| URL | Type | ||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||||||||||||||
{
"affected": [
{
"ecosystem_specific": {
"fix": "bump",
"range_state": "fixed",
"resource": "aiohttp",
"resource_purl": "pkg:pypi/aiohttp@3.14.3",
"upstream_fixed_in": "3.7.4"
},
"package": {
"ecosystem": "Homebrew",
"name": "vdirsyncer",
"purl": "pkg:brew/vdirsyncer"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.20.0_8"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"database_specific": {
"confidence": "high",
"source": "matched",
"strategy": "registry",
"upstream_evidence": [
{
"ecosystem": "PyPI",
"key": "pkg:pypi/aiohttp@3.14.3",
"name": "aiohttp",
"resource": "aiohttp",
"strategy": "registry",
"subject_version": "3.14.3"
}
]
},
"details": "### Impact\n\nOpen redirect vulnerability \u2014 a maliciously crafted link to an aiohttp-based web-server could redirect the browser to a different website.\n\nIt is caused by a bug in the `aiohttp.web_middlewares.normalize_path_middleware` middleware.\n\n### Patches\n\nThis security problem has been fixed in v3.7.4. Upgrade your dependency as follows:\n[`pip install aiohttp \u003e= 3.7.4`]\n\n### Workarounds\n\nIf upgrading is not an option for you, a workaround can be to avoid using `aiohttp.web_middlewares.normalize_path_middleware` in your applications.\n\n### References\n\n* [aiohttp @ PyPI]\n* [GHSA-v6wp-4m6f-gcjg]\n* [OWASP page on open redirects]\n\n### For more information\n\nIf you have any questions or comments about this advisory:\n* Open an issue in the [aiohttp repo](https://github.com/aio-libs/aiohttp/issues/new/choose)\n* Email us at wk+aio-libs-security@sydorenko.org.ua and/or andrew.svetlov+aio-libs-security@gmail.com\n\nCredit: [Jelmer Vernoo\u0133] and [Beast Glatisant].\n\n[aiohttp @ PyPI]: https://pypi.org/p/aiohttp\n[`pip install aiohttp \u003e= 3.7.4`]: https://pypi.org/project/aiohttp/3.7.4/\n[GHSA-v6wp-4m6f-gcjg]: https://github.com/aio-libs/aiohttp/security/advisories/GHSA-v6wp-4m6f-gcjg\n[OWASP page on open redirects]:\nhttps://cheatsheetseries.owasp.org/cheatsheets/Unvalidated_Redirects_and_Forwards_Cheat_Sheet.html\n\n[Jelmer Vernoo\u0133]: https://jelmer.uk\n[Beast Glatisant]: https://github.com/g147",
"id": "BREW-vdirsyncer-CVE-2021-21330",
"modified": "2026-09-10T01:32:33Z",
"published": "2026-08-13T17:46:47Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/aio-libs/aiohttp/security/advisories/GHSA-v6wp-4m6f-gcjg"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-21330"
},
{
"type": "WEB",
"url": "https://github.com/aio-libs/aiohttp/commit/2545222a3853e31ace15d87ae0e2effb7da0c96b"
},
{
"type": "PACKAGE",
"url": "https://github.com/aio-libs/aiohttp"
},
{
"type": "WEB",
"url": "https://github.com/aio-libs/aiohttp/blob/master/CHANGES.rst#374-2021-02-25"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/aiohttp/PYSEC-2021-76.yaml"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FU7ENI54JNEK3PHEFGCE46DGMFNTVU6L"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JN3V7CZJRT4QFCVXB6LDPCJH7NAOFCA5"
},
{
"type": "WEB",
"url": "https://pypi.org/project/aiohttp"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202208-19"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2021/dsa-4864"
}
],
"schema_version": "1.7.3",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "`aiohttp` Open Redirect vulnerability (`normalize_path_middleware` middleware)",
"upstream": [
"GHSA-v6wp-4m6f-gcjg",
"CVE-2021-21330",
"PYSEC-2021-76"
]
}
CVE-2021-21330 (GCVE-0-2021-21330)
Vulnerability from cvelistv5 – Published: 2021-02-26 02:15 – Updated: 2024-08-03 18:09
VLAI
EPSS
VEX
Title
Open redirect vulnerability in aiohttp
Summary
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.
Severity
CWE
- CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://github.com/aio-libs/aiohttp/security/advi… | x_refsource_CONFIRM |
| https://github.com/aio-libs/aiohttp/commit/254522… | x_refsource_MISC |
| https://github.com/aio-libs/aiohttp/blob/master/C… | x_refsource_MISC |
| https://pypi.org/project/aiohttp/ | x_refsource_MISC |
| https://www.debian.org/security/2021/dsa-4864 | vendor-advisoryx_refsource_DEBIAN |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://lists.fedoraproject.org/archives/list/pac… | vendor-advisoryx_refsource_FEDORA |
| https://security.gentoo.org/glsa/202208-19 | vendor-advisoryx_refsource_GENTOO |
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-03T18:09:15.080Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_refsource_CONFIRM",
"x_transferred"
],
"url": "https://github.com/aio-libs/aiohttp/security/advisories/GHSA-v6wp-4m6f-gcjg"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/aio-libs/aiohttp/commit/2545222a3853e31ace15d87ae0e2effb7da0c96b"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://github.com/aio-libs/aiohttp/blob/master/CHANGES.rst#374-2021-02-25"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://pypi.org/project/aiohttp/"
},
{
"name": "DSA-4864",
"tags": [
"vendor-advisory",
"x_refsource_DEBIAN",
"x_transferred"
],
"url": "https://www.debian.org/security/2021/dsa-4864"
},
{
"name": "FEDORA-2021-673b10ed77",
"tags": [
"vendor-advisory",
"x_refsource_FEDORA",
"x_transferred"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JN3V7CZJRT4QFCVXB6LDPCJH7NAOFCA5/"
},
{
"name": "FEDORA-2021-902c1b07c9",
"tags": [
"vendor-advisory",
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Trend slope:
-
(linear fit over daily sighting counts)
Show additional events:
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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