{"kind": "product", "path": "vulns/ubuntu-25.10/python-urllib3", "name": "python-urllib3", "product": "python-urllib3", "ecosystem": "Ubuntu:25.10", "items": [{"id": "CVE-2026-9375", "noindex": false, "published": "2026-06-19T19:16:00Z", "modified": "2026-10-14T11:47:37.965604919Z", "cvss": 7.5, "cvss_vector": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "severity": "high", "epss": null, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2026-9375", "title": "UBUNTU-CVE-2026-9375", "description": "Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.", "references": ["https://ubuntu.com/security/CVE-2026-9375", "https://www.cve.org/CVERecord?id=CVE-2026-9375", "https://huntr.com/bounties/ddd09eb9-b87d-4a43-84df-48837b1bbc23"], "fixes": [], "products": [{"name": "python-urllib3", "path": "vulns/ubuntu-25.10/python-urllib3", "ecosystem": "Ubuntu:25.10"}]}, {"id": "CVE-2026-44431", "noindex": false, "published": "2026-05-13T15:20:24.588Z", "modified": "2026-06-26T11:01:19.373Z", "cvss": 8.2, "cvss_vector": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N", "severity": "high", "epss": 0.00339, "kev": false, "exploits": ["public-poc"], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2026-44431", "title": "urllib3: Sensitive headers forwarded across origins in proxied low-level redirects", "description": "urllib3 is an HTTP client library for Python. From 1.23 to before 2.7.0, cross-origin redirects followed from the low-level API via ProxyManager.connection_from_url().urlopen(..., assert_same_host=False) still forward these sensitive headers. This vulnerability is fixed in 2.7.0.", "references": ["https://github.com/urllib3/urllib3/security/advisories/GHSA-qccp-gfcp-xxvc", "https://lists.debian.org/debian-lts-announce/2026/06/msg00040.html", "https://nvd.nist.gov/vuln/detail/CVE-2026-44431"], "fixes": ["2.3.0-3ubuntu0.6"], "products": [{"name": "python-urllib3", "path": "vulns/ubuntu-25.10/python-urllib3", "ecosystem": "Ubuntu:25.10"}]}, {"id": "CVE-2026-21441", "noindex": false, "published": "2026-01-07T22:09:01.936Z", "modified": "2026-09-17T12:04:39.688Z", "cvss": 8.9, "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H", "severity": "high", "epss": 0.02922, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2026-21441", "title": "urllib3 vulnerable to decompression-bomb safeguard bypass when following HTTP redirects (streaming API)", "description": "urllib3 is an HTTP client library for Python. urllib3's streaming API is designed for the efficient handling of large HTTP responses by reading the content in chunks, rather than loading the entire response body into memory at once. urllib3 can perform decoding or decompression based on the HTTP `Content-Encoding` header (e.g., `gzip`, `deflate`, `br`, or `zstd`). When using the streaming API, the library decompresses only the necessary bytes, enabling partial content consumption. Starting in version 1.22 and prior to version 2.6.3, for HTTP redirect responses, the library would read the entire response body to drain the connection and decomp", "references": ["https://github.com/urllib3/urllib3/security/advisories/GHSA-38jv-5279-wg99", "https://github.com/urllib3/urllib3/commit/8864ac407bba8607950025e0979c4c69bc7abc7b", "https://lists.debian.org/debian-lts-announce/2026/01/msg00017.html"], "fixes": ["2.3.0-3ubuntu0.2"], "products": [{"name": "python-urllib3", "path": "vulns/ubuntu-25.10/python-urllib3", "ecosystem": "Ubuntu:25.10"}]}, {"id": "CVE-2025-66471", "noindex": false, "published": "2025-12-05T16:06:08.531Z", "modified": "2025-12-05T19:33:14.832Z", "cvss": 8.9, "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H", "severity": "high", "epss": 0.00682, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2025-66471", "title": "urllib3 Streaming API improperly handles highly compressed data", "description": "urllib3 is a user-friendly HTTP client library for Python. Starting in version 1.0 and prior to 2.6.0, the Streaming API improperly handles highly compressed data. urllib3's streaming API is designed for the efficient handling of large HTTP responses by reading the content in chunks, rather than loading the entire response body into memory at once. When streaming a compressed response, urllib3 can perform decoding or decompression based on the HTTP Content-Encoding header (e.g., gzip, deflate, br, or zstd). The library must read compressed data from the network and decompress it until the requested chunk size is met. Any resulting decompresse", "references": ["https://github.com/urllib3/urllib3/security/advisories/GHSA-2xpw-w6gg-jr37", "https://github.com/urllib3/urllib3/commit/c19571de34c47de3a766541b041637ba5f716ed7", "https://nvd.nist.gov/vuln/detail/CVE-2025-66471"], "fixes": ["2.3.0-3ubuntu0.1"], "products": [{"name": "python-urllib3", "path": "vulns/ubuntu-25.10/python-urllib3", "ecosystem": "Ubuntu:25.10"}]}, {"id": "CVE-2025-66418", "noindex": false, "published": "2025-12-05T16:02:15.271Z", "modified": "2025-12-05T18:15:28.505Z", "cvss": 8.9, "cvss_vector": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H", "severity": "high", "epss": 0.00682, "kev": false, "exploits": [], "stacks": [{"name": "system", "path": "vulns/stack/system", "slug": "system"}], "path": "vulns/cve-2025-66418", "title": "urllib3 allows an unbounded number of links in the decompression chain", "description": "urllib3 is a user-friendly HTTP client library for Python. Starting in version 1.24 and prior to 2.6.0, the number of links in the decompression chain was unbounded allowing a malicious server to insert a virtually unlimited number of compression steps leading to high CPU usage and massive memory allocation for the decompressed data. This vulnerability is fixed in 2.6.0.", "references": ["https://github.com/urllib3/urllib3/security/advisories/GHSA-gm62-xv2j-4w53", "https://github.com/urllib3/urllib3/commit/24d7b67eac89f94e11003424bcf0d8f7b72222a8", "https://nvd.nist.gov/vuln/detail/CVE-2025-66418"], "fixes": ["2.3.0-3ubuntu0.1"], "products": [{"name": "python-urllib3", "path": "vulns/ubuntu-25.10/python-urllib3", "ecosystem": "Ubuntu:25.10"}]}], "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-25.10/python-urllib3", "ecosystem": "Ubuntu:25.10"}], "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": "2026-10-14T11:47:37.965604919Z", "early_advisories": [], "license": "You may freely use the PatchFirst selection and our additions (priorities, early warnings, texts, summaries and aggregates) for your own purposes, including internal business use. Resale, commercial distribution and bulk mirroring of this selection or these additions require a written agreement with the operator. Whenever you use or publish the selection or our additions, credit PatchFirst (https://patchfirst.dev/vulns/) with this link to the regional feed page. Original records from open sources remain subject to their respective licenses and terms. These conditions do not restrict your rights to the original data, which you can obtain directly from those sources.", "terms_url": "https://patchfirst.dev/vulns/#feed-terms", "attribution": {"name": "PatchFirst", "url": "https://patchfirst.dev/vulns/"}, "source_changes": "Records are selected, normalized and combined by PatchFirst; summaries and translations may be added. News is credited with a link to the original source in each entry.", "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": "Upstream licenses vary; see the source catalog."}, {"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": "Free public scores; attribution requested (FIRST EPSS, scores generated by 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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