{"kind": "product", "path": "vulns/ubuntu-20.04-lts/python-urllib3", "name": "python-urllib3", "product": "python-urllib3", "ecosystem": "Ubuntu:20.04:LTS", "items": [{"id": "CVE-2024-37891", "noindex": false, "published": "2024-06-17T19:18:32.574Z", "modified": "2025-11-03T21:55:35.021Z", "cvss": 4.4, "cvss_vector": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N", "severity": "medium", "epss": 0.01141, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2024-37891", "title": "Proxy-Authorization request header isn't stripped during cross-origin redirects in urllib3", "description": " urllib3 is a user-friendly HTTP client library for Python. When using urllib3's proxy support with `ProxyManager`, the `Proxy-Authorization` header is only sent to the configured proxy, as expected. However, when sending HTTP requests *without* using urllib3's proxy support, it's possible to accidentally configure the `Proxy-Authorization` header even though it won't have any effect as the request is not using a forwarding proxy or a tunneling proxy. In those cases, urllib3 doesn't treat the `Proxy-Authorization` HTTP header as one carrying authentication material and thus doesn't strip the header on cross-origin redirects. Because this is a", "references": ["https://github.com/urllib3/urllib3/security/advisories/GHSA-34jh-p97f-mpxf", "https://github.com/urllib3/urllib3/commit/accff72ecc2f6cf5a76d9570198a93ac7c90270e", "https://www.vicarius.io/vsociety/posts/proxy-authorization-header-handling-vulnerability-in-urllib3-cve-2024-37891"], "fixes": ["1.25.8-2ubuntu0.4"], "products": [{"name": "python-urllib3", "path": "vulns/ubuntu-20.04-lts/python-urllib3", "ecosystem": "Ubuntu:20.04:LTS"}]}, {"id": "CVE-2023-45803", "noindex": false, "published": "2023-10-17T19:43:45.404Z", "modified": "2025-11-03T21:49:53.115Z", "cvss": 4.2, "cvss_vector": "CVSS:3.1/AV:A/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N", "severity": "medium", "epss": 0.00593, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2023-45803", "title": "Request body not stripped after redirect in urllib3", "description": "urllib3 is a user-friendly HTTP client library for Python. urllib3 previously wouldn't remove the HTTP request body when an HTTP redirect response using status 301, 302, or 303 after the request had its method changed from one that could accept a request body (like `POST`) to `GET` as is required by HTTP RFCs. Although this behavior is not specified in the section for redirects, it can be inferred by piecing together information from different sections and we have observed the behavior in other major HTTP client implementations like curl and web browsers. Because the vulnerability requires a previously trusted service to become compromised in", "references": ["https://github.com/urllib3/urllib3/security/advisories/GHSA-g4mx-q9vg-27p4", "https://github.com/urllib3/urllib3/commit/4e98d57809dacab1cbe625fddeec1a290c478ea9", "https://www.rfc-editor.org/rfc/rfc9110.html#name-get"], "fixes": ["1.25.8-2ubuntu0.3"], "products": [{"name": "python-urllib3", "path": "vulns/ubuntu-20.04-lts/python-urllib3", "ecosystem": "Ubuntu:20.04:LTS"}]}, {"id": "CVE-2023-43804", "noindex": false, "published": "2023-10-04T16:01:50.447Z", "modified": "2025-11-03T21:49:44.074Z", "cvss": 5.9, "cvss_vector": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N", "severity": "medium", "epss": 0.0136, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2023-43804", "title": "`Cookie` HTTP header isn't stripped on cross-origin redirects", "description": "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.", "references": ["https://github.com/urllib3/urllib3/security/advisories/GHSA-v845-jxx5-vc9f", "https://github.com/urllib3/urllib3/commit/01220354d389cd05474713f8c982d05c9b17aafb", "https://github.com/urllib3/urllib3/commit/644124ecd0b6e417c527191f866daa05a5a2056d"], "fixes": ["1.25.8-2ubuntu0.3"], "products": [{"name": "python-urllib3", "path": "vulns/ubuntu-20.04-lts/python-urllib3", "ecosystem": "Ubuntu:20.04:LTS"}]}, {"id": "CVE-2021-33503", "noindex": false, "published": "2021-06-29T10:55:35.000Z", "modified": "2024-08-03T23:50:42.973Z", "cvss": 7.5, "cvss_vector": "", "severity": "high", "epss": 0.03273, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2021-33503", "title": "CVE-2021-33503", "description": "An issue was discovered in urllib3 before 1.26.5. When provided with a URL containing many @ characters in the authority component, the authority regular expression exhibits catastrophic backtracking, causing a denial of service if a URL were passed as a parameter or redirected to via an HTTP redirect.", "references": ["https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FMUGWEAUYGGHTPPXT6YBD53WYXQGVV73/", "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6SCV7ZNAHS3E6PBFLJGENCDRDRWRZZ6W/", "https://security.gentoo.org/glsa/202107-36"], "fixes": ["1.25.8-2ubuntu0.2"], "products": [{"name": "python-urllib3", "path": "vulns/ubuntu-20.04-lts/python-urllib3", "ecosystem": "Ubuntu:20.04:LTS"}]}, {"id": "CVE-2020-26137", "noindex": false, "published": "2020-09-29T00:00:00.000Z", "modified": "2024-08-04T15:49:07.138Z", "cvss": 6.5, "cvss_vector": "", "severity": "medium", "epss": 0.02269, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2020-26137", "title": "CVE-2020-26137", "description": "urllib3 before 1.25.9 allows CRLF injection if the attacker controls the HTTP request method, as demonstrated by inserting CR and LF control characters in the first argument of putrequest(). NOTE: this is similar to CVE-2020-26116.", "references": ["https://bugs.python.org/issue39603", "https://github.com/urllib3/urllib3/pull/1800", "https://github.com/urllib3/urllib3/commit/1dd69c5c5982fae7c87a620d487c2ebf7a6b436b"], "fixes": ["1.25.8-2ubuntu0.1"], "products": [{"name": "python-urllib3", "path": "vulns/ubuntu-20.04-lts/python-urllib3", "ecosystem": "Ubuntu:20.04:LTS"}]}], "total": 5, "unknown_count": 0, "release_unconfirmed": false, "page": 1, "pages": 1, "filtered": false, "noindex": false, "filters": {}, "page_size": 20, "products": [{"name": "python-urllib3", "path": "vulns/ubuntu-20.04-lts/python-urllib3", "ecosystem": "Ubuntu:20.04:LTS"}], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}, {"name": "web", "path": "vulns/stack/web", "slug": "web"}, {"name": "php", "path": "vulns/stack/php", "slug": "php"}, {"name": "python", "path": "vulns/stack/python", "slug": "python"}, {"name": "node", "path": "vulns/stack/node", "slug": "node"}, {"name": "database", "path": "vulns/stack/database", "slug": "database"}, {"name": "containers", "path": "vulns/stack/containers", "slug": "containers"}, {"name": "network", "path": "vulns/stack/network", "slug": "network"}, {"name": "applications", "path": "vulns/stack/applications", "slug": "applications"}], "versions": [], "stats": {"recent": 0, "kev": 0}, "lastmod": "2025-11-03T21:55:35.021Z", "early_advisories": [], "license": "Подборку PatchFirst и наши дополнения (приоритеты, ранние предупреждения, тексты, сводки и агрегаты) можно свободно использовать для собственных целей, включая внутренние задачи бизнеса. Перепродажа, коммерческое распространение и массовое зеркалирование этой подборки или дополнений допускаются только по письменному соглашению с оператором. При любом использовании или публикации подборки или наших дополнений указывайте PatchFirst (https://ru.patchfirst.dev/vulns/) с этой ссылкой на страницу ленты своего региона. Исходные записи открытых источников остаются под их лицензиями и условиями. Эти условия не ограничивают ваши права на исходные данные, которые можно получить у источников напрямую.", "terms_url": "https://ru.patchfirst.dev/vulns/#feed-terms", "attribution": {"name": "PatchFirst", "url": "https://ru.patchfirst.dev/vulns/"}, "source_changes": "PatchFirst отбирает, нормализует и объединяет записи; могут добавляться сводки и переводы. Новости указываются ссылкой на первоисточник в самой записи.", "sources": [{"id": "cve", "name": "CVE List / CVE.org", "url": "https://www.cve.org/", "license": "CVE Terms of Use", "terms_url": "https://www.cve.org/Legal/TermsOfUse", "notice": "Copyright © 1999–2021, The MITRE Corporation. LICENSE Submissions : For all materials you submit to the Common Vulnerabilities and Exposures (CVE™), you hereby grant to The MITRE Corporation (MITRE) and all CVE Numbering Authorities (CNAs) a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute such materials and derivative works. Unless required by applicable law or agreed to in writing, you provide such materials on an \"AS IS\" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied, including, without limitation, any warranties or conditions of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A PARTICULAR PURPOSE. CVE Usage : MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy. DISCLAIMERS ALL DOCUMENTS AND THE INFORMATION CONTAINED THEREIN PROVIDED BY MITRE ARE PROVIDED ON AN \"AS IS\" BASIS AND THE CONTRIBUTOR, THE ORGANIZATION HE/SHE REPRESENTS OR IS SPONSORED BY (IF ANY), THE MITRE CORPORATION, ITS BOARD OF TRUSTEES, OFFICERS, AGENTS, AND EMPLOYEES, DISCLAIM ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION THEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE."}, {"id": "osv", "name": "OSV", "url": "https://osv.dev/", "terms_url": "https://google.github.io/osv.dev/data/", "terms": "Лицензии исходных баз различаются; см. каталог источников."}, {"id": "kev", "name": "CISA KEV", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog", "license": "CC0-1.0", "terms_url": "https://github.com/cisagov/kev-data/blob/develop/LICENSE"}, {"id": "epss", "name": "FIRST EPSS", "url": "https://www.first.org/epss/", "terms_url": "https://www.first.org/epss/faq", "terms": "Оценки доступны свободно; запрашивается указание источника (FIRST EPSS, оценки подготовлены Empirical Security)."}, {"id": "github-advisory", "name": "GitHub Advisory Database", "url": "https://github.com/advisories", "license": "CC-BY-4.0", "terms_url": "https://github.com/github/advisory-database/blob/main/LICENSE.md"}, {"id": "exploitdb", "name": "Exploit-DB", "url": "https://www.exploit-db.com/", "license": "GPL-2.0", "terms_url": "https://gitlab.com/exploit-database/exploitdb/-/blob/main/LICENSE.md"}, {"id": "metasploit", "name": "Metasploit", "url": "https://github.com/rapid7/metasploit-framework", "license": "BSD-3-Clause", "terms_url": "https://github.com/rapid7/metasploit-framework/blob/master/LICENSE", "notice": "Copyright (c) 2006-2026, Rapid7, Inc.\nLicense: BSD-3-clause\n Redistribution and use in source and binary forms, with or without modification,\n are permitted provided that the following conditions are met:\n .\n * Redistributions of source code must retain the above copyright notice,\n this list of conditions and the following disclaimer.\n .\n * Redistributions in binary form must reproduce the above copyright notice,\n this list of conditions and the following disclaimer in the documentation\n and/or other materials provided with the distribution.\n .\n * Neither the name of Rapid7, Inc. nor the names of its contributors\n may be used to endorse or promote products derived from this software\n without specific prior written permission.\n .\n THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS \"AS IS\" AND\n ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE\n DISCLAIMED. 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