Vulnerability Details CVE-2025-50182
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 1.7%
CVSS Severity
CVSS v3 Score 5.3
References
Products affected by CVE-2025-50182
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cpe:2.3:a:python:urllib3:2.2.0
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cpe:2.3:a:python:urllib3:2.2.1
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cpe:2.3:a:python:urllib3:2.2.2
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cpe:2.3:a:python:urllib3:2.2.3
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cpe:2.3:a:python:urllib3:2.3.0
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cpe:2.3:a:python:urllib3:2.4.0