{"id":"CVE-2025-50182","summary":"urllib3 does not control redirects in browsers and Node.js","details":"urllib3 is a user-friendly HTTP client library for Python. Starting in version 2.2.0 and prior to 2.5.0, urllib3 does not control redirects in browsers and Node.js. urllib3 supports being used in a Pyodide runtime utilizing the JavaScript Fetch API or falling back on XMLHttpRequest. This means Python libraries can be used to make HTTP requests from a browser or Node.js. Additionally, urllib3 provides a mechanism to control redirects, but the retries and redirect parameters are ignored with Pyodide; the runtime itself determines redirect behavior. This issue has been patched in version 2.5.0.","aliases":["GHSA-48p4-8xcf-vxj5"],"modified":"2026-04-17T04:27:15.442975Z","published":"2025-06-19T01:42:44.921Z","related":["CGA-5662-r5jm-85pr","openSUSE-SU-2025:15283-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/50xxx/CVE-2025-50182.json","cwe_ids":["CWE-601"],"cna_assigner":"GitHub_M"},"references":[{"type":"WEB","url":"https://github.com/urllib3/urllib3/releases/tag/2.5.0"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/50xxx/CVE-2025-50182.json"},{"type":"ADVISORY","url":"https://github.com/urllib3/urllib3/security/advisories/GHSA-48p4-8xcf-vxj5"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-50182"},{"type":"FIX","url":"https://github.com/urllib3/urllib3/commit/7eb4a2aafe49a279c29b6d1f0ed0f42e9736194f"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/urllib3/urllib3","events":[{"introduced":"04df048cf4b1c3790c56e26c659db764aad62d6f"},{"fixed":"aaab4eccc10c965897540b21e15f11859d0b62e7"}]}],"versions":["2.2.0","2.2.1","2.2.2","2.2.3","2.3.0","2.4.0"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-50182.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N"}]}