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.

CVSS v3 5.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.6 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/urllib3/urllib3/commit/7eb4a2aafe49a279c29b6d1f0ed0f42e9736194f	Patch
https://github.com/urllib3/urllib3/releases/tag/2.5.0
https://github.com/urllib3/urllib3/security/advisories/GHSA-48p4-8xcf-vxj5	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:python:urllib3:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2025-06-19 02:15

Updated : 2025-12-22 19:15

NVD link : CVE-2025-50182

Mitre link : CVE-2025-50182

CVE.ORG link : CVE-2025-50182

JSON object : View

Products Affected

python

urllib3

CWE

CWE-601

URL Redirection to Untrusted Site ('Open Redirect')

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