# CVE-2025-50182

## Summary

- **CVE ID:** CVE-2025-50182
- **Severity:** MEDIUM
- **CVSS Score:** 5.3 (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N)
- **CWE:** CWE-601
- **Published:** Jun 19, 2025
- **Last Modified:** Sep 14, 2026

## Description

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.

## Affected Products

- urllib3 — urllib3 (>= 2.2.0, < 2.5.0)

## References

- [CNA](https://github.com/urllib3/urllib3/security/advisories/GHSA-48p4-8xcf-vxj5)
- [CNA](https://github.com/urllib3/urllib3/commit/7eb4a2aafe49a279c29b6d1f0ed0f42e9736194f)
- [CNA](https://github.com/urllib3/urllib3/releases/tag/2.5.0)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.37%
- **EPSS Percentile:** 30.2

---
_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-18._