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PYSEC-2023-192
Vulnerability from pysec - Published: 2023-10-04 17:15 - Updated: 2023-10-10 14:28
VLAI
Details
urllib3 is a user-friendly HTTP client library for Python. urllib3 doesn't treat the Cookie HTTP header special or provide any helpers for managing cookies over HTTP, that is the responsibility of the user. However, it is possible for a user to specify a Cookie header and unknowingly leak information via HTTP redirects to a different origin if that user doesn't disable redirects explicitly. This issue has been patched in urllib3 version 1.26.17 or 2.0.5.
Severity
8.1 (High)
Impacted products
| Name | purl | urllib3 | pkg:pypi/urllib3 |
|---|
Aliases
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "urllib3",
"purl": "pkg:pypi/urllib3"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "644124ecd0b6e417c527191f866daa05a5a2056d"
},
{
"fixed": "01220354d389cd05474713f8c982d05c9b17aafb"
}
],
"repo": "https://github.com/urllib3/urllib3",
"type": "GIT"
},
{
"events": [
{
"introduced": "2.0.0"
},
{
"fixed": "2.0.6"
},
{
"introduced": "0"
},
{
"fixed": "1.26.17"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"0.2",
"0.3",
"0.3.1",
"0.4.0",
"0.4.1",
"1.0",
"1.0.1",
"1.0.2",
"1.1",
"1.10",
"1.10.1",
"1.10.2",
"1.10.3",
"1.10.4",
"1.11",
"1.12",
"1.13",
"1.13.1",
"1.14",
"1.15",
"1.15.1",
"1.16",
"1.17",
"1.18",
"1.18.1",
"1.19",
"1.19.1",
"1.2",
"1.2.1",
"1.2.2",
"1.20",
"1.21",
"1.21.1",
"1.22",
"1.23",
"1.24",
"1.24.1",
"1.24.2",
"1.24.3",
"1.25",
"1.25.1",
"1.25.10",
"1.25.11",
"1.25.2",
"1.25.3",
"1.25.4",
"1.25.5",
"1.25.6",
"1.25.7",
"1.25.8",
"1.25.9",
"1.26.0",
"1.26.1",
"1.26.10",
"1.26.11",
"1.26.12",
"1.26.13",
"1.26.14",
"1.26.15",
"1.26.16",
"1.26.2",
"1.26.3",
"1.26.4",
"1.26.5",
"1.26.6",
"1.26.7",
"1.26.8",
"1.26.9",
"1.3",
"1.4",
"1.5",
"1.6",
"1.7",
"1.7.1",
"1.8",
"1.8.2",
"1.8.3",
"1.9",
"1.9.1",
"2.0.0",
"2.0.1",
"2.0.2",
"2.0.3",
"2.0.4",
"2.0.5"
]
}
],
"aliases": [
"CVE-2023-43804",
"GHSA-v845-jxx5-vc9f"
],
"details": "urllib3 is a user-friendly HTTP client library for Python. urllib3 doesn\u0027t treat the `Cookie` HTTP header special or provide any helpers for managing cookies over HTTP, that is the responsibility of the user. However, it is possible for a user to specify a `Cookie` header and unknowingly leak information via HTTP redirects to a different origin if that user doesn\u0027t disable redirects explicitly. This issue has been patched in urllib3 version 1.26.17 or 2.0.5.",
"id": "PYSEC-2023-192",
"modified": "2023-10-10T14:28:19.389317+00:00",
"published": "2023-10-04T17:15:00+00:00",
"references": [
{
"type": "FIX",
"url": "https://github.com/urllib3/urllib3/commit/644124ecd0b6e417c527191f866daa05a5a2056d"
},
{
"type": "FIX",
"url": "https://github.com/urllib3/urllib3/security/advisories/GHSA-v845-jxx5-vc9f"
},
{
"type": "ADVISORY",
"url": "https://github.com/urllib3/urllib3/security/advisories/GHSA-v845-jxx5-vc9f"
},
{
"type": "FIX",
"url": "https://github.com/urllib3/urllib3/commit/01220354d389cd05474713f8c982d05c9b17aafb"
},
{
"type": "ARTICLE",
"url": "https://lists.debian.org/debian-lts-announce/2023/10/msg00012.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2023/10/msg00012.html"
}
],
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
"type": "CVSS_V3"
}
]
}
BREW-STANDARDEBOOKS-CVE-… (GHSA-V845-JXX5-VC9F)
Vulnerability from osv_homebrew – Published: 2026-08-13 17:41 – Updated: 2026-09-10 01:22 – Source website
VLAI
Summary
`Cookie` HTTP header isn't stripped on cross-origin redirects
Details
urllib3 doesn't treat the Cookie HTTP header special or provide any helpers for managing cookies over HTTP, that is the responsibility of the user. However, it is possible for a user to specify a Cookie header and unknowingly leak information via HTTP redirects to a different origin if that user doesn't disable redirects explicitly.
Users must handle redirects themselves instead of relying on urllib3's automatic redirects to achieve safe processing of the Cookie header, thus we decided to strip the header by default in order to further protect users who aren't using the correct approach.
Affected usages
We believe the number of usages affected by this advisory is low. It requires all of the following to be true to be exploited:
- Using an affected version of urllib3 (patched in v1.26.17 and v2.0.6)
- Using the
Cookieheader on requests, which is mostly typical for impersonating a browser. - Not disabling HTTP redirects
- Either not using HTTPS or for the origin server to redirect to a malicious origin.
Remediation
- Upgrading to at least urllib3 v1.26.17 or v2.0.6
- Disabling HTTP redirects using
redirects=Falsewhen sending requests. - Not using the
Cookieheader.
Severity
References
{
"affected": [
{
"ecosystem_specific": {
"fix": "bump",
"range_state": "fixed",
"resource": "urllib3",
"resource_purl": "pkg:pypi/urllib3@2.7.0",
"upstream_fixed_in": "2.0.6"
},
"package": {
"ecosystem": "Homebrew",
"name": "standardebooks",
"purl": "pkg:brew/standardebooks"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "4.0.3"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"database_specific": {
"confidence": "high",
"source": "matched",
"strategy": "registry",
"upstream_evidence": [
{
"ecosystem": "PyPI",
"key": "pkg:pypi/urllib3@2.7.0",
"name": "urllib3",
"resource": "urllib3",
"strategy": "registry",
"subject_version": "2.7.0"
}
]
},
"details": "urllib3 doesn\u0027t treat the `Cookie` HTTP header special or provide any helpers for managing cookies over HTTP, that is the responsibility of the user. However, it is possible for a user to specify a `Cookie` header and unknowingly leak information via HTTP redirects to a different origin if that user doesn\u0027t disable redirects explicitly.\n\nUsers **must** handle redirects themselves instead of relying on urllib3\u0027s automatic redirects to achieve safe processing of the `Cookie` header, thus we decided to strip the header by default in order to further protect users who aren\u0027t using the correct approach.\n\n## Affected usages\n\nWe believe the number of usages affected by this advisory is low. It requires all of the following to be true to be exploited:\n\n* Using an affected version of urllib3 (patched in v1.26.17 and v2.0.6)\n* Using the `Cookie` header on requests, which is mostly typical for impersonating a browser.\n* Not disabling HTTP redirects\n* Either not using HTTPS or for the origin server to redirect to a malicious origin.\n\n## Remediation\n\n* Upgrading to at least urllib3 v1.26.17 or v2.0.6\n* Disabling HTTP redirects using `redirects=False` when sending requests.\n* Not using the `Cookie` header.",
"id": "BREW-standardebooks-CVE-2023-43804",
"modified": "2026-09-10T01:22:10Z",
"published": "2026-08-13T17:41:08Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/urllib3/urllib3/security/advisories/GHSA-v845-jxx5-vc9f"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-43804"
},
{
"type": "WEB",
"url": "https://github.com/urllib3/urllib3/commit/01220354d389cd05474713f8c982d05c9b17aafb"
},
{
"type": "WEB",
"url": "https://github.com/urllib3/urllib3/commit/644124ecd0b6e417c527191f866daa05a5a2056d"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/urllib3/PYSEC-2023-192.yaml"
},
{
"type": "PACKAGE",
"url": "https://github.com/urllib3/urllib3"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2023/10/msg00012.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2024/12/msg00020.html"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5F5CUBAN5XMEBVBZPHFITBLMJV5FIJJ5"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/I3PR7C6RJ6JUBQKIJ644DMIJSUP36VDY"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NDAGZXYJ7H2G3SB47M453VQVNAWKAEJJ"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20241213-0007"
},
{
"type": "WEB",
"url": "https://www.vicarius.io/vsociety/posts/cve-2023-43804-urllib3-vulnerability-3"
}
],
"schema_version": "1.7.3",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "`Cookie` HTTP header isn\u0027t stripped on cross-origin redirects",
"upstream": [
"GHSA-v845-jxx5-vc9f",
"CVE-2023-43804",
"PYSEC-2023-192"
]
}
BREW-STREAMLINK-CVE-2023-43804 (GHSA-V845-JXX5-VC9F)
Vulnerability from osv_homebrew – Published: 2026-08-13 17:41 – Updated: 2026-10-07 23:16 – Source website
VLAI
Summary
`Cookie` HTTP header isn't stripped on cross-origin redirects
Details
urllib3 doesn't treat the Cookie HTTP header special or provide any helpers for managing cookies over HTTP, that is the responsibility of the user. However, it is possible for a user to specify a Cookie header and unknowingly leak information via HTTP redirects to a different origin if that user doesn't disable redirects explicitly.
Users must handle redirects themselves instead of relying on urllib3's automatic redirects to achieve safe processing of the Cookie header, thus we decided to strip the header by default in order to further protect users who aren't using the correct approach.
Affected usages
We believe the number of usages affected by this advisory is low. It requires all of the following to be true to be exploited:
- Using an affected version of urllib3 (patched in v1.26.17 and v2.0.6)
- Using the
Cookieheader on requests, which is mostly typical for impersonating a browser. - Not disabling HTTP redirects
- Either not using HTTPS or for the origin server to redirect to a malicious origin.
Remediation
- Upgrading to at least urllib3 v1.26.17 or v2.0.6
- Disabling HTTP redirects using
redirects=Falsewhen sending requests. - Not using the
Cookieheader.
Severity
References
| URL | Type | ||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||||||||||||||||||||
{
"affected": [
{
"ecosystem_specific": {
"fix": "bump",
"range_state": "fixed",
"resource": "urllib3",
"resource_purl": "pkg:pypi/urllib3@2.8.0",
"upstream_fixed_in": "2.0.6"
},
"package": {
"ecosystem": "Homebrew",
"name": "streamlink",
"purl": "pkg:brew/streamlink"
},
"ranges": [
{
"events": [
{
"introduced": "0.8.1"
},
{
"fixed": "6.2.1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"database_specific": {
"confidence": "high",
"source": "matched",
"strategy": "registry",
"upstream_evidence": [
{
"ecosystem": "PyPI",
"key": "pkg:pypi/urllib3@2.8.0",
"name": "urllib3",
"resource": "urllib3",
"strategy": "registry",
"subject_version": "2.8.0"
}
]
},
"details": "urllib3 doesn\u0027t treat the `Cookie` HTTP header special or provide any helpers for managing cookies over HTTP, that is the responsibility of the user. However, it is possible for a user to specify a `Cookie` header and unknowingly leak information via HTTP redirects to a different origin if that user doesn\u0027t disable redirects explicitly.\n\nUsers **must** handle redirects themselves instead of relying on urllib3\u0027s automatic redirects to achieve safe processing of the `Cookie` header, thus we decided to strip the header by default in order to further protect users who aren\u0027t using the correct approach.\n\n## Affected usages\n\nWe believe the number of usages affected by this advisory is low. It requires all of the following to be true to be exploited:\n\n* Using an affected version of urllib3 (patched in v1.26.17 and v2.0.6)\n* Using the `Cookie` header on requests, which is mostly typical for impersonating a browser.\n* Not disabling HTTP redirects\n* Either not using HTTPS or for the origin server to redirect to a malicious origin.\n\n## Remediation\n\n* Upgrading to at least urllib3 v1.26.17 or v2.0.6\n* Disabling HTTP redirects using `redirects=False` when sending requests.\n* Not using the `Cookie` header.",
"id": "BREW-streamlink-CVE-2023-43804",
"modified": "2026-10-07T23:16:50Z",
"published": "2026-08-13T17:41:09Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/urllib3/urllib3/security/advisories/GHSA-v845-jxx5-vc9f"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-43804"
},
{
"type": "WEB",
"url": "https://github.com/urllib3/urllib3/commit/01220354d389cd05474713f8c982d05c9b17aafb"
},
{
"type": "WEB",
"url": "https://github.com/urllib3/urllib3/commit/644124ecd0b6e417c527191f866daa05a5a2056d"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/urllib3/PYSEC-2023-192.yaml"
},
{
"type": "PACKAGE",
"url": "https://github.com/urllib3/urllib3"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2023/10/msg00012.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2024/12/msg00020.html"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5F5CUBAN5XMEBVBZPHFITBLMJV5FIJJ5"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/I3PR7C6RJ6JUBQKIJ644DMIJSUP36VDY"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NDAGZXYJ7H2G3SB47M453VQVNAWKAEJJ"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20241213-0007"
},
{
"type": "WEB",
"url": "https://www.vicarius.io/vsociety/posts/cve-2023-43804-urllib3-vulnerability-3"
}
],
"schema_version": "1.7.3",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "`Cookie` HTTP header isn\u0027t stripped on cross-origin redirects",
"upstream": [
"GHSA-v845-jxx5-vc9f",
"CVE-2023-43804",
"PYSEC-2023-192"
]
}
BREW-STREAMRIP-CVE-2023-43804 (GHSA-V845-JXX5-VC9F)
Vulnerability from osv_homebrew – Published: 2026-08-13 17:41 – Updated: 2026-09-10 01:23 – Source website
VLAI
Summary
`Cookie` HTTP header isn't stripped on cross-origin redirects
Details
urllib3 doesn't treat the Cookie HTTP header special or provide any helpers for managing cookies over HTTP, that is the responsibility of the user. However, it is possible for a user to specify a Cookie header and unknowingly leak information via HTTP redirects to a different origin if that user doesn't disable redirects explicitly.
Users must handle redirects themselves instead of relying on urllib3's automatic redirects to achieve safe processing of the Cookie header, thus we decided to strip the header by default in order to further protect users who aren't using the correct approach.
Affected usages
We believe the number of usages affected by this advisory is low. It requires all of the following to be true to be exploited:
- Using an affected version of urllib3 (patched in v1.26.17 and v2.0.6)
- Using the
Cookieheader on requests, which is mostly typical for impersonating a browser. - Not disabling HTTP redirects
- Either not using HTTPS or for the origin server to redirect to a malicious origin.
Remediation
- Upgrading to at least urllib3 v1.26.17 or v2.0.6
- Disabling HTTP redirects using
redirects=Falsewhen sending requests. - Not using the
Cookieheader.
Severity
References
| URL | Type | ||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||||||||||||||||||||
{
"affected": [
{
"ecosystem_specific": {
"fix": "bump",
"range_state": "fixed",
"resource": "urllib3",
"resource_purl": "pkg:pypi/urllib3@2.7.0",
"upstream_fixed_in": "2.0.6"
},
"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/urllib3@2.7.0",
"name": "urllib3",
"resource": "urllib3",
"strategy": "registry",
"subject_version": "2.7.0"
}
]
},
"details": "urllib3 doesn\u0027t treat the `Cookie` HTTP header special or provide any helpers for managing cookies over HTTP, that is the responsibility of the user. However, it is possible for a user to specify a `Cookie` header and unknowingly leak information via HTTP redirects to a different origin if that user doesn\u0027t disable redirects explicitly.\n\nUsers **must** handle redirects themselves instead of relying on urllib3\u0027s automatic redirects to achieve safe processing of the `Cookie` header, thus we decided to strip the header by default in order to further protect users who aren\u0027t using the correct approach.\n\n## Affected usages\n\nWe believe the number of usages affected by this advisory is low. It requires all of the following to be true to be exploited:\n\n* Using an affected version of urllib3 (patched in v1.26.17 and v2.0.6)\n* Using the `Cookie` header on requests, which is mostly typical for impersonating a browser.\n* Not disabling HTTP redirects\n* Either not using HTTPS or for the origin server to redirect to a malicious origin.\n\n## Remediation\n\n* Upgrading to at least urllib3 v1.26.17 or v2.0.6\n* Disabling HTTP redirects using `redirects=False` when sending requests.\n* Not using the `Cookie` header.",
"id": "BREW-streamrip-CVE-2023-43804",
"modified": "2026-09-10T01:23:27Z",
"published": "2026-08-13T17:41:09Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/urllib3/urllib3/security/advisories/GHSA-v845-jxx5-vc9f"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-43804"
},
{
"type": "WEB",
"url": "https://github.com/urllib3/urllib3/commit/01220354d389cd05474713f8c982d05c9b17aafb"
},
{
"type": "WEB",
"url": "https://github.com/urllib3/urllib3/commit/644124ecd0b6e417c527191f866daa05a5a2056d"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/urllib3/PYSEC-2023-192.yaml"
},
{
"type": "PACKAGE",
"url": "https://github.com/urllib3/urllib3"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2023/10/msg00012.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2024/12/msg00020.html"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5F5CUBAN5XMEBVBZPHFITBLMJV5FIJJ5"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/I3PR7C6RJ6JUBQKIJ644DMIJSUP36VDY"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NDAGZXYJ7H2G3SB47M453VQVNAWKAEJJ"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20241213-0007"
},
{
"type": "WEB",
"url": "https://www.vicarius.io/vsociety/posts/cve-2023-43804-urllib3-vulnerability-3"
}
],
"schema_version": "1.7.3",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "`Cookie` HTTP header isn\u0027t stripped on cross-origin redirects",
"upstream": [
"GHSA-v845-jxx5-vc9f",
"CVE-2023-43804",
"PYSEC-2023-192"
]
}
BREW-SUBLIMINAL-CVE-2023-43804 (GHSA-V845-JXX5-VC9F)
Vulnerability from osv_homebrew – Published: 2026-08-13 17:41 – Updated: 2026-10-13 22:28 – Source website
VLAI
Summary
`Cookie` HTTP header isn't stripped on cross-origin redirects
Details
urllib3 doesn't treat the Cookie HTTP header special or provide any helpers for managing cookies over HTTP, that is the responsibility of the user. However, it is possible for a user to specify a Cookie header and unknowingly leak information via HTTP redirects to a different origin if that user doesn't disable redirects explicitly.
Users must handle redirects themselves instead of relying on urllib3's automatic redirects to achieve safe processing of the Cookie header, thus we decided to strip the header by default in order to further protect users who aren't using the correct approach.
Affected usages
We believe the number of usages affected by this advisory is low. It requires all of the following to be true to be exploited:
- Using an affected version of urllib3 (patched in v1.26.17 and v2.0.6)
- Using the
Cookieheader on requests, which is mostly typical for impersonating a browser. - Not disabling HTTP redirects
- Either not using HTTPS or for the origin server to redirect to a malicious origin.
Remediation
- Upgrading to at least urllib3 v1.26.17 or v2.0.6
- Disabling HTTP redirects using
redirects=Falsewhen sending requests. - Not using the
Cookieheader.
Severity
References
| URL | Type | ||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||||||||||||||||||||
{
"affected": [
{
"ecosystem_specific": {
"fix": "bump",
"range_state": "fixed",
"resource": "urllib3",
"resource_purl": "pkg:pypi/urllib3@2.8.0",
"upstream_fixed_in": "2.0.6"
},
"package": {
"ecosystem": "Homebrew",
"name": "subliminal",
"purl": "pkg:brew/subliminal"
},
"ranges": [
{
"events": [
{
"introduced": "2.1.0"
},
{
"fixed": "2.2.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"database_specific": {
"confidence": "high",
"source": "matched",
"strategy": "registry",
"upstream_evidence": [
{
"ecosystem": "PyPI",
"key": "pkg:pypi/urllib3@2.8.0",
"name": "urllib3",
"resource": "urllib3",
"strategy": "registry",
"subject_version": "2.8.0"
}
]
},
"details": "urllib3 doesn\u0027t treat the `Cookie` HTTP header special or provide any helpers for managing cookies over HTTP, that is the responsibility of the user. However, it is possible for a user to specify a `Cookie` header and unknowingly leak information via HTTP redirects to a different origin if that user doesn\u0027t disable redirects explicitly.\n\nUsers **must** handle redirects themselves instead of relying on urllib3\u0027s automatic redirects to achieve safe processing of the `Cookie` header, thus we decided to strip the header by default in order to further protect users who aren\u0027t using the correct approach.\n\n## Affected usages\n\nWe believe the number of usages affected by this advisory is low. It requires all of the following to be true to be exploited:\n\n* Using an affected version of urllib3 (patched in v1.26.17 and v2.0.6)\n* Using the `Cookie` header on requests, which is mostly typical for impersonating a browser.\n* Not disabling HTTP redirects\n* Either not using HTTPS or for the origin server to redirect to a malicious origin.\n\n## Remediation\n\n* Upgrading to at least urllib3 v1.26.17 or v2.0.6\n* Disabling HTTP redirects using `redirects=False` when sending requests.\n* Not using the `Cookie` header.",
"id": "BREW-subliminal-CVE-2023-43804",
"modified": "2026-10-13T22:28:48Z",
"published": "2026-08-13T17:41:17Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/urllib3/urllib3/security/advisories/GHSA-v845-jxx5-vc9f"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-43804"
},
{
"type": "WEB",
"url": "https://github.com/urllib3/urllib3/commit/01220354d389cd05474713f8c982d05c9b17aafb"
},
{
"type": "WEB",
"url": "https://github.com/urllib3/urllib3/commit/644124ecd0b6e417c527191f866daa05a5a2056d"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/urllib3/PYSEC-2023-192.yaml"
},
{
"type": "PACKAGE",
"url": "https://github.com/urllib3/urllib3"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2023/10/msg00012.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2024/12/msg00020.html"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5F5CUBAN5XMEBVBZPHFITBLMJV5FIJJ5"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/I3PR7C6RJ6JUBQKIJ644DMIJSUP36VDY"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NDAGZXYJ7H2G3SB47M453VQVNAWKAEJJ"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20241213-0007"
},
{
"type": "WEB",
"url": "https://www.vicarius.io/vsociety/posts/cve-2023-43804-urllib3-vulnerability-3"
}
],
"schema_version": "1.7.3",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "`Cookie` HTTP header isn\u0027t stripped on cross-origin redirects",
"upstream": [
"GHSA-v845-jxx5-vc9f",
"CVE-2023-43804",
"PYSEC-2023-192"
]
}
BREW-SVTPLAY-DL-CVE-2023-43804 (GHSA-V845-JXX5-VC9F)
Vulnerability from osv_homebrew – Published: 2026-08-13 17:41 – Updated: 2026-10-08 00:04 – Source website
VLAI
Summary
`Cookie` HTTP header isn't stripped on cross-origin redirects
Details
urllib3 doesn't treat the Cookie HTTP header special or provide any helpers for managing cookies over HTTP, that is the responsibility of the user. However, it is possible for a user to specify a Cookie header and unknowingly leak information via HTTP redirects to a different origin if that user doesn't disable redirects explicitly.
Users must handle redirects themselves instead of relying on urllib3's automatic redirects to achieve safe processing of the Cookie header, thus we decided to strip the header by default in order to further protect users who aren't using the correct approach.
Affected usages
We believe the number of usages affected by this advisory is low. It requires all of the following to be true to be exploited:
- Using an affected version of urllib3 (patched in v1.26.17 and v2.0.6)
- Using the
Cookieheader on requests, which is mostly typical for impersonating a browser. - Not disabling HTTP redirects
- Either not using HTTPS or for the origin server to redirect to a malicious origin.
Remediation
- Upgrading to at least urllib3 v1.26.17 or v2.0.6
- Disabling HTTP redirects using
redirects=Falsewhen sending requests. - Not using the
Cookieheader.
Severity
References
| URL | Type | ||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||||||||||||||||||||
{
"affected": [
{
"ecosystem_specific": {
"fix": "bump",
"range_state": "fixed",
"resource": "urllib3",
"resource_purl": "pkg:pypi/urllib3@2.8.0",
"upstream_fixed_in": "2.0.6"
},
"package": {
"ecosystem": "Homebrew",
"name": "svtplay-dl",
"purl": "pkg:brew/svtplay-dl"
},
"ranges": [
{
"events": [
{
"introduced": "1.9.6"
},
{
"fixed": "4.25_2"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"database_specific": {
"confidence": "high",
"source": "matched",
"strategy": "registry",
"upstream_evidence": [
{
"ecosystem": "PyPI",
"key": "pkg:pypi/urllib3@2.8.0",
"name": "urllib3",
"resource": "urllib3",
"strategy": "registry",
"subject_version": "2.8.0"
}
]
},
"details": "urllib3 doesn\u0027t treat the `Cookie` HTTP header special or provide any helpers for managing cookies over HTTP, that is the responsibility of the user. However, it is possible for a user to specify a `Cookie` header and unknowingly leak information via HTTP redirects to a different origin if that user doesn\u0027t disable redirects explicitly.\n\nUsers **must** handle redirects themselves instead of relying on urllib3\u0027s automatic redirects to achieve safe processing of the `Cookie` header, thus we decided to strip the header by default in order to further protect users who aren\u0027t using the correct approach.\n\n## Affected usages\n\nWe believe the number of usages affected by this advisory is low. It requires all of the following to be true to be exploited:\n\n* Using an affected version of urllib3 (patched in v1.26.17 and v2.0.6)\n* Using the `Cookie` header on requests, which is mostly typical for impersonating a browser.\n* Not disabling HTTP redirects\n* Either not using HTTPS or for the origin server to redirect to a malicious origin.\n\n## Remediation\n\n* Upgrading to at least urllib3 v1.26.17 or v2.0.6\n* Disabling HTTP redirects using `redirects=False` when sending requests.\n* Not using the `Cookie` header.",
"id": "BREW-svtplay-dl-CVE-2023-43804",
"modified": "2026-10-08T00:04:21Z",
"published": "2026-08-13T17:41:39Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/urllib3/urllib3/security/advisories/GHSA-v845-jxx5-vc9f"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-43804"
},
{
"type": "WEB",
"url": "https://github.com/urllib3/urllib3/commit/01220354d389cd05474713f8c982d05c9b17aafb"
},
{
"type": "WEB",
"url": "https://github.com/urllib3/urllib3/commit/644124ecd0b6e417c527191f866daa05a5a2056d"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/urllib3/PYSEC-2023-192.yaml"
},
{
"type": "PACKAGE",
"url": "https://github.com/urllib3/urllib3"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2023/10/msg00012.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2024/12/msg00020.html"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5F5CUBAN5XMEBVBZPHFITBLMJV5FIJJ5"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/I3PR7C6RJ6JUBQKIJ644DMIJSUP36VDY"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NDAGZXYJ7H2G3SB47M453VQVNAWKAEJJ"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20241213-0007"
},
{
"type": "WEB",
"url": "https://www.vicarius.io/vsociety/posts/cve-2023-43804-urllib3-vulnerability-3"
}
],
"schema_version": "1.7.3",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "`Cookie` HTTP header isn\u0027t stripped on cross-origin redirects",
"upstream": [
"GHSA-v845-jxx5-vc9f",
"CVE-2023-43804",
"PYSEC-2023-192"
]
}
BREW-SYSAIDMIN-CVE-2023-43804 (GHSA-V845-JXX5-VC9F)
Vulnerability from osv_homebrew – Published: 2026-08-13 17:42 – Updated: 2026-09-10 01:24 – Source website
VLAI
Summary
`Cookie` HTTP header isn't stripped on cross-origin redirects
Details
urllib3 doesn't treat the Cookie HTTP header special or provide any helpers for managing cookies over HTTP, that is the responsibility of the user. However, it is possible for a user to specify a Cookie header and unknowingly leak information via HTTP redirects to a different origin if that user doesn't disable redirects explicitly.
Users must handle redirects themselves instead of relying on urllib3's automatic redirects to achieve safe processing of the Cookie header, thus we decided to strip the header by default in order to further protect users who aren't using the correct approach.
Affected usages
We believe the number of usages affected by this advisory is low. It requires all of the following to be true to be exploited:
- Using an affected version of urllib3 (patched in v1.26.17 and v2.0.6)
- Using the
Cookieheader on requests, which is mostly typical for impersonating a browser. - Not disabling HTTP redirects
- Either not using HTTPS or for the origin server to redirect to a malicious origin.
Remediation
- Upgrading to at least urllib3 v1.26.17 or v2.0.6
- Disabling HTTP redirects using
redirects=Falsewhen sending requests. - Not using the
Cookieheader.
Severity
References
| URL | Type | ||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||||||||||||||||||||
{
"affected": [
{
"ecosystem_specific": {
"fix": "bump",
"range_state": "fixed",
"resource": "urllib3",
"resource_purl": "pkg:pypi/urllib3@2.7.0",
"upstream_fixed_in": "2.0.6"
},
"package": {
"ecosystem": "Homebrew",
"name": "sysaidmin",
"purl": "pkg:brew/sysaidmin"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.2.5_19"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"database_specific": {
"confidence": "high",
"source": "matched",
"strategy": "registry",
"upstream_evidence": [
{
"ecosystem": "PyPI",
"key": "pkg:pypi/urllib3@2.7.0",
"name": "urllib3",
"resource": "urllib3",
"strategy": "registry",
"subject_version": "2.7.0"
}
]
},
"details": "urllib3 doesn\u0027t treat the `Cookie` HTTP header special or provide any helpers for managing cookies over HTTP, that is the responsibility of the user. However, it is possible for a user to specify a `Cookie` header and unknowingly leak information via HTTP redirects to a different origin if that user doesn\u0027t disable redirects explicitly.\n\nUsers **must** handle redirects themselves instead of relying on urllib3\u0027s automatic redirects to achieve safe processing of the `Cookie` header, thus we decided to strip the header by default in order to further protect users who aren\u0027t using the correct approach.\n\n## Affected usages\n\nWe believe the number of usages affected by this advisory is low. It requires all of the following to be true to be exploited:\n\n* Using an affected version of urllib3 (patched in v1.26.17 and v2.0.6)\n* Using the `Cookie` header on requests, which is mostly typical for impersonating a browser.\n* Not disabling HTTP redirects\n* Either not using HTTPS or for the origin server to redirect to a malicious origin.\n\n## Remediation\n\n* Upgrading to at least urllib3 v1.26.17 or v2.0.6\n* Disabling HTTP redirects using `redirects=False` when sending requests.\n* Not using the `Cookie` header.",
"id": "BREW-sysaidmin-CVE-2023-43804",
"modified": "2026-09-10T01:24:31Z",
"published": "2026-08-13T17:42:12Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/urllib3/urllib3/security/advisories/GHSA-v845-jxx5-vc9f"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-43804"
},
{
"type": "WEB",
"url": "https://github.com/urllib3/urllib3/commit/01220354d389cd05474713f8c982d05c9b17aafb"
},
{
"type": "WEB",
"url": "https://github.com/urllib3/urllib3/commit/644124ecd0b6e417c527191f866daa05a5a2056d"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/urllib3/PYSEC-2023-192.yaml"
},
{
"type": "PACKAGE",
"url": "https://github.com/urllib3/urllib3"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2023/10/msg00012.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2024/12/msg00020.html"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5F5CUBAN5XMEBVBZPHFITBLMJV5FIJJ5"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/I3PR7C6RJ6JUBQKIJ644DMIJSUP36VDY"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NDAGZXYJ7H2G3SB47M453VQVNAWKAEJJ"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20241213-0007"
},
{
"type": "WEB",
"url": "https://www.vicarius.io/vsociety/posts/cve-2023-43804-urllib3-vulnerability-3"
}
],
"schema_version": "1.7.3",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "`Cookie` HTTP header isn\u0027t stripped on cross-origin redirects",
"upstream": [
"GHSA-v845-jxx5-vc9f",
"CVE-2023-43804",
"PYSEC-2023-192"
]
}
BREW-TERN-CVE-2023-43804 (GHSA-V845-JXX5-VC9F)
Vulnerability from osv_homebrew – Published: 2026-08-13 17:43 – Updated: 2026-10-14 05:22 – Source website
VLAI
Summary
`Cookie` HTTP header isn't stripped on cross-origin redirects
Details
urllib3 doesn't treat the Cookie HTTP header special or provide any helpers for managing cookies over HTTP, that is the responsibility of the user. However, it is possible for a user to specify a Cookie header and unknowingly leak information via HTTP redirects to a different origin if that user doesn't disable redirects explicitly.
Users must handle redirects themselves instead of relying on urllib3's automatic redirects to achieve safe processing of the Cookie header, thus we decided to strip the header by default in order to further protect users who aren't using the correct approach.
Affected usages
We believe the number of usages affected by this advisory is low. It requires all of the following to be true to be exploited:
- Using an affected version of urllib3 (patched in v1.26.17 and v2.0.6)
- Using the
Cookieheader on requests, which is mostly typical for impersonating a browser. - Not disabling HTTP redirects
- Either not using HTTPS or for the origin server to redirect to a malicious origin.
Remediation
- Upgrading to at least urllib3 v1.26.17 or v2.0.6
- Disabling HTTP redirects using
redirects=Falsewhen sending requests. - Not using the
Cookieheader.
Severity
References
| URL | Type | ||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||||||||||||||||||||
{
"affected": [
{
"ecosystem_specific": {
"fix": null,
"range_state": "affected",
"resource": "urllib3",
"resource_purl": "pkg:pypi/urllib3@2.6.2",
"upstream_fixed_in": "2.0.6"
},
"package": {
"ecosystem": "Homebrew",
"name": "tern",
"purl": "pkg:brew/tern"
},
"ranges": [
{
"events": [
{
"introduced": "2.12.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"database_specific": {
"confidence": "high",
"source": "matched",
"strategy": "registry",
"upstream_evidence": [
{
"ecosystem": "PyPI",
"key": "pkg:pypi/urllib3@2.6.2",
"name": "urllib3",
"resource": "urllib3",
"strategy": "registry",
"subject_version": "2.6.2"
}
]
},
"details": "urllib3 doesn\u0027t treat the `Cookie` HTTP header special or provide any helpers for managing cookies over HTTP, that is the responsibility of the user. However, it is possible for a user to specify a `Cookie` header and unknowingly leak information via HTTP redirects to a different origin if that user doesn\u0027t disable redirects explicitly.\n\nUsers **must** handle redirects themselves instead of relying on urllib3\u0027s automatic redirects to achieve safe processing of the `Cookie` header, thus we decided to strip the header by default in order to further protect users who aren\u0027t using the correct approach.\n\n## Affected usages\n\nWe believe the number of usages affected by this advisory is low. It requires all of the following to be true to be exploited:\n\n* Using an affected version of urllib3 (patched in v1.26.17 and v2.0.6)\n* Using the `Cookie` header on requests, which is mostly typical for impersonating a browser.\n* Not disabling HTTP redirects\n* Either not using HTTPS or for the origin server to redirect to a malicious origin.\n\n## Remediation\n\n* Upgrading to at least urllib3 v1.26.17 or v2.0.6\n* Disabling HTTP redirects using `redirects=False` when sending requests.\n* Not using the `Cookie` header.",
"id": "BREW-tern-CVE-2023-43804",
"modified": "2026-10-14T05:22:09Z",
"published": "2026-08-13T17:43:04Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/urllib3/urllib3/security/advisories/GHSA-v845-jxx5-vc9f"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-43804"
},
{
"type": "WEB",
"url": "https://github.com/urllib3/urllib3/commit/01220354d389cd05474713f8c982d05c9b17aafb"
},
{
"type": "WEB",
"url": "https://github.com/urllib3/urllib3/commit/644124ecd0b6e417c527191f866daa05a5a2056d"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/urllib3/PYSEC-2023-192.yaml"
},
{
"type": "PACKAGE",
"url": "https://github.com/urllib3/urllib3"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2023/10/msg00012.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2024/12/msg00020.html"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5F5CUBAN5XMEBVBZPHFITBLMJV5FIJJ5"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/I3PR7C6RJ6JUBQKIJ644DMIJSUP36VDY"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NDAGZXYJ7H2G3SB47M453VQVNAWKAEJJ"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20241213-0007"
},
{
"type": "WEB",
"url": "https://www.vicarius.io/vsociety/posts/cve-2023-43804-urllib3-vulnerability-3"
}
],
"schema_version": "1.7.3",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "`Cookie` HTTP header isn\u0027t stripped on cross-origin redirects",
"upstream": [
"GHSA-v845-jxx5-vc9f",
"CVE-2023-43804",
"PYSEC-2023-192"
]
}
BREW-TERRAFORM-IAM-POLIC… (GHSA-V845-JXX5-VC9F)
Vulnerability from osv_homebrew – Published: 2026-08-13 17:43 – Updated: 2026-09-10 01:28 – Source website
VLAI
Summary
`Cookie` HTTP header isn't stripped on cross-origin redirects
Details
urllib3 doesn't treat the Cookie HTTP header special or provide any helpers for managing cookies over HTTP, that is the responsibility of the user. However, it is possible for a user to specify a Cookie header and unknowingly leak information via HTTP redirects to a different origin if that user doesn't disable redirects explicitly.
Users must handle redirects themselves instead of relying on urllib3's automatic redirects to achieve safe processing of the Cookie header, thus we decided to strip the header by default in order to further protect users who aren't using the correct approach.
Affected usages
We believe the number of usages affected by this advisory is low. It requires all of the following to be true to be exploited:
- Using an affected version of urllib3 (patched in v1.26.17 and v2.0.6)
- Using the
Cookieheader on requests, which is mostly typical for impersonating a browser. - Not disabling HTTP redirects
- Either not using HTTPS or for the origin server to redirect to a malicious origin.
Remediation
- Upgrading to at least urllib3 v1.26.17 or v2.0.6
- Disabling HTTP redirects using
redirects=Falsewhen sending requests. - Not using the
Cookieheader.
Severity
References
| URL | Type | ||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||||||||||||||||||||
{
"affected": [
{
"ecosystem_specific": {
"fix": "bump",
"range_state": "fixed",
"resource": "urllib3",
"resource_purl": "pkg:pypi/urllib3@2.7.0",
"upstream_fixed_in": "2.0.6"
},
"package": {
"ecosystem": "Homebrew",
"name": "terraform-iam-policy-validator",
"purl": "pkg:brew/terraform-iam-policy-validator"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.0.9_4"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"database_specific": {
"confidence": "high",
"source": "matched",
"strategy": "registry",
"upstream_evidence": [
{
"ecosystem": "PyPI",
"key": "pkg:pypi/urllib3@2.7.0",
"name": "urllib3",
"resource": "urllib3",
"strategy": "registry",
"subject_version": "2.7.0"
}
]
},
"details": "urllib3 doesn\u0027t treat the `Cookie` HTTP header special or provide any helpers for managing cookies over HTTP, that is the responsibility of the user. However, it is possible for a user to specify a `Cookie` header and unknowingly leak information via HTTP redirects to a different origin if that user doesn\u0027t disable redirects explicitly.\n\nUsers **must** handle redirects themselves instead of relying on urllib3\u0027s automatic redirects to achieve safe processing of the `Cookie` header, thus we decided to strip the header by default in order to further protect users who aren\u0027t using the correct approach.\n\n## Affected usages\n\nWe believe the number of usages affected by this advisory is low. It requires all of the following to be true to be exploited:\n\n* Using an affected version of urllib3 (patched in v1.26.17 and v2.0.6)\n* Using the `Cookie` header on requests, which is mostly typical for impersonating a browser.\n* Not disabling HTTP redirects\n* Either not using HTTPS or for the origin server to redirect to a malicious origin.\n\n## Remediation\n\n* Upgrading to at least urllib3 v1.26.17 or v2.0.6\n* Disabling HTTP redirects using `redirects=False` when sending requests.\n* Not using the `Cookie` header.",
"id": "BREW-terraform-iam-policy-validator-CVE-2023-43804",
"modified": "2026-09-10T01:28:13Z",
"published": "2026-08-13T17:43:04Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/urllib3/urllib3/security/advisories/GHSA-v845-jxx5-vc9f"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-43804"
},
{
"type": "WEB",
"url": "https://github.com/urllib3/urllib3/commit/01220354d389cd05474713f8c982d05c9b17aafb"
},
{
"type": "WEB",
"url": "https://github.com/urllib3/urllib3/commit/644124ecd0b6e417c527191f866daa05a5a2056d"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/urllib3/PYSEC-2023-192.yaml"
},
{
"type": "PACKAGE",
"url": "https://github.com/urllib3/urllib3"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2023/10/msg00012.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2024/12/msg00020.html"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5F5CUBAN5XMEBVBZPHFITBLMJV5FIJJ5"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/I3PR7C6RJ6JUBQKIJ644DMIJSUP36VDY"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NDAGZXYJ7H2G3SB47M453VQVNAWKAEJJ"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20241213-0007"
},
{
"type": "WEB",
"url": "https://www.vicarius.io/vsociety/posts/cve-2023-43804-urllib3-vulnerability-3"
}
],
"schema_version": "1.7.3",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "`Cookie` HTTP header isn\u0027t stripped on cross-origin redirects",
"upstream": [
"GHSA-v845-jxx5-vc9f",
"CVE-2023-43804",
"PYSEC-2023-192"
]
}
BREW-TERRAFORM-LOCAL-CVE… (GHSA-V845-JXX5-VC9F)
Vulnerability from osv_homebrew – Published: 2026-08-13 17:43 – Updated: 2026-09-10 01:28 – Source website
VLAI
Summary
`Cookie` HTTP header isn't stripped on cross-origin redirects
Details
urllib3 doesn't treat the Cookie HTTP header special or provide any helpers for managing cookies over HTTP, that is the responsibility of the user. However, it is possible for a user to specify a Cookie header and unknowingly leak information via HTTP redirects to a different origin if that user doesn't disable redirects explicitly.
Users must handle redirects themselves instead of relying on urllib3's automatic redirects to achieve safe processing of the Cookie header, thus we decided to strip the header by default in order to further protect users who aren't using the correct approach.
Affected usages
We believe the number of usages affected by this advisory is low. It requires all of the following to be true to be exploited:
- Using an affected version of urllib3 (patched in v1.26.17 and v2.0.6)
- Using the
Cookieheader on requests, which is mostly typical for impersonating a browser. - Not disabling HTTP redirects
- Either not using HTTPS or for the origin server to redirect to a malicious origin.
Remediation
- Upgrading to at least urllib3 v1.26.17 or v2.0.6
- Disabling HTTP redirects using
redirects=Falsewhen sending requests. - Not using the
Cookieheader.
Severity
References
| URL | Type | ||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||||||||||||||||||||
{
"affected": [
{
"ecosystem_specific": {
"fix": "bump",
"range_state": "fixed",
"resource": "urllib3",
"resource_purl": "pkg:pypi/urllib3@2.7.0",
"upstream_fixed_in": "2.0.6"
},
"package": {
"ecosystem": "Homebrew",
"name": "terraform-local",
"purl": "pkg:brew/terraform-local"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.26.0_1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"database_specific": {
"confidence": "high",
"source": "matched",
"strategy": "registry",
"upstream_evidence": [
{
"ecosystem": "PyPI",
"key": "pkg:pypi/urllib3@2.7.0",
"name": "urllib3",
"resource": "urllib3",
"strategy": "registry",
"subject_version": "2.7.0"
}
]
},
"details": "urllib3 doesn\u0027t treat the `Cookie` HTTP header special or provide any helpers for managing cookies over HTTP, that is the responsibility of the user. However, it is possible for a user to specify a `Cookie` header and unknowingly leak information via HTTP redirects to a different origin if that user doesn\u0027t disable redirects explicitly.\n\nUsers **must** handle redirects themselves instead of relying on urllib3\u0027s automatic redirects to achieve safe processing of the `Cookie` header, thus we decided to strip the header by default in order to further protect users who aren\u0027t using the correct approach.\n\n## Affected usages\n\nWe believe the number of usages affected by this advisory is low. It requires all of the following to be true to be exploited:\n\n* Using an affected version of urllib3 (patched in v1.26.17 and v2.0.6)\n* Using the `Cookie` header on requests, which is mostly typical for impersonating a browser.\n* Not disabling HTTP redirects\n* Either not using HTTPS or for the origin server to redirect to a malicious origin.\n\n## Remediation\n\n* Upgrading to at least urllib3 v1.26.17 or v2.0.6\n* Disabling HTTP redirects using `redirects=False` when sending requests.\n* Not using the `Cookie` header.",
"id": "BREW-terraform-local-CVE-2023-43804",
"modified": "2026-09-10T01:28:13Z",
"published": "2026-08-13T17:43:04Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/urllib3/urllib3/security/advisories/GHSA-v845-jxx5-vc9f"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-43804"
},
{
"type": "WEB",
"url": "https://github.com/urllib3/urllib3/commit/01220354d389cd05474713f8c982d05c9b17aafb"
},
{
"type": "WEB",
"url": "https://github.com/urllib3/urllib3/commit/644124ecd0b6e417c527191f866daa05a5a2056d"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/urllib3/PYSEC-2023-192.yaml"
},
{
"type": "PACKAGE",
"url": "https://github.com/urllib3/urllib3"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2023/10/msg00012.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2024/12/msg00020.html"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5F5CUBAN5XMEBVBZPHFITBLMJV5FIJJ5"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/I3PR7C6RJ6JUBQKIJ644DMIJSUP36VDY"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NDAGZXYJ7H2G3SB47M453VQVNAWKAEJJ"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20241213-0007"
},
{
"type": "WEB",
"url": "https://www.vicarius.io/vsociety/posts/cve-2023-43804-urllib3-vulnerability-3"
}
],
"schema_version": "1.7.3",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "`Cookie` HTTP header isn\u0027t stripped on cross-origin redirects",
"upstream": [
"GHSA-v845-jxx5-vc9f",
"CVE-2023-43804",
"PYSEC-2023-192"
]
}
BREW-THEHARVESTER-CVE-20… (GHSA-V845-JXX5-VC9F)
Vulnerability from osv_homebrew – Published: 2026-08-13 17:43 – Updated: 2026-10-07 23:06 – Source website
VLAI
Summary
`Cookie` HTTP header isn't stripped on cross-origin redirects
Details
urllib3 doesn't treat the Cookie HTTP header special or provide any helpers for managing cookies over HTTP, that is the responsibility of the user. However, it is possible for a user to specify a Cookie header and unknowingly leak information via HTTP redirects to a different origin if that user doesn't disable redirects explicitly.
Users must handle redirects themselves instead of relying on urllib3's automatic redirects to achieve safe processing of the Cookie header, thus we decided to strip the header by default in order to further protect users who aren't using the correct approach.
Affected usages
We believe the number of usages affected by this advisory is low. It requires all of the following to be true to be exploited:
- Using an affected version of urllib3 (patched in v1.26.17 and v2.0.6)
- Using the
Cookieheader on requests, which is mostly typical for impersonating a browser. - Not disabling HTTP redirects
- Either not using HTTPS or for the origin server to redirect to a malicious origin.
Remediation
- Upgrading to at least urllib3 v1.26.17 or v2.0.6
- Disabling HTTP redirects using
redirects=Falsewhen sending requests. - Not using the
Cookieheader.
Severity
References
| URL | Type | ||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||||||||||||||||||||
{
"affected": [
{
"ecosystem_specific": {
"fix": "bump",
"range_state": "fixed",
"resource": "urllib3",
"resource_purl": "pkg:pypi/urllib3@2.8.0",
"upstream_fixed_in": "2.0.6"
},
"package": {
"ecosystem": "Homebrew",
"name": "theharvester",
"purl": "pkg:brew/theharvester"
},
"ranges": [
{
"events": [
{
"introduced": "3.0.6"
},
{
"fixed": "4.5.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"database_specific": {
"confidence": "high",
"source": "matched",
"strategy": "registry",
"upstream_evidence": [
{
"ecosystem": "PyPI",
"key": "pkg:pypi/urllib3@2.8.0",
"name": "urllib3",
"resource": "urllib3",
"strategy": "registry",
"subject_version": "2.8.0"
}
]
},
"details": "urllib3 doesn\u0027t treat the `Cookie` HTTP header special or provide any helpers for managing cookies over HTTP, that is the responsibility of the user. However, it is possible for a user to specify a `Cookie` header and unknowingly leak information via HTTP redirects to a different origin if that user doesn\u0027t disable redirects explicitly.\n\nUsers **must** handle redirects themselves instead of relying on urllib3\u0027s automatic redirects to achieve safe processing of the `Cookie` header, thus we decided to strip the header by default in order to further protect users who aren\u0027t using the correct approach.\n\n## Affected usages\n\nWe believe the number of usages affected by this advisory is low. It requires all of the following to be true to be exploited:\n\n* Using an affected version of urllib3 (patched in v1.26.17 and v2.0.6)\n* Using the `Cookie` header on requests, which is mostly typical for impersonating a browser.\n* Not disabling HTTP redirects\n* Either not using HTTPS or for the origin server to redirect to a malicious origin.\n\n## Remediation\n\n* Upgrading to at least urllib3 v1.26.17 or v2.0.6\n* Disabling HTTP redirects using `redirects=False` when sending requests.\n* Not using the `Cookie` header.",
"id": "BREW-theharvester-CVE-2023-43804",
"modified": "2026-10-07T23:06:48Z",
"published": "2026-08-13T17:43:26Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/urllib3/urllib3/security/advisories/GHSA-v845-jxx5-vc9f"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-43804"
},
{
"type": "WEB",
"url": "https://github.com/urllib3/urllib3/commit/01220354d389cd05474713f8c982d05c9b17aafb"
},
{
"type": "WEB",
"url": "https://github.com/urllib3/urllib3/commit/644124ecd0b6e417c527191f866daa05a5a2056d"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/urllib3/PYSEC-2023-192.yaml"
},
{
"type": "PACKAGE",
"url": "https://github.com/urllib3/urllib3"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2023/10/msg00012.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2024/12/msg00020.html"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/5F5CUBAN5XMEBVBZPHFITBLMJV5FIJJ5"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/I3PR7C6RJ6JUBQKIJ644DMIJSUP36VDY"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NDAGZXYJ7H2G3SB47M453VQVNAWKAEJJ"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20241213-0007"
},
{
"type": "WEB",
"url": "https://www.vicarius.io/vsociety/posts/cve-2023-43804-urllib3-vulnerability-3"
}
],
"schema_version": "1.7.3",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "`Cookie` HTTP header isn\u0027t stripped on cross-origin redirects",
"upstream": [
"GHSA-v845-jxx5-vc9f",
"CVE-2023-43804",
"PYSEC-2023-192"
]
}
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Trend slope:
-
(linear fit over daily sighting counts)
Show additional events:
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Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
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.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
How durations are calculated
Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.
Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.
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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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