CVE-2025-50181

Published: Jun 19, 2025Modified: Jun 17, 2026

6.1

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Exploitability: 2.8 / Impact: 2.7

Source: NVD

Description

urllib3 is a user-friendly HTTP client library for Python. Prior to 2.5.0, it is possible to disable redirects for all requests by instantiating a PoolManager and specifying retries in a way that disable redirects. By default, requests and botocore users are not affected. An application attempting to mitigate SSRF or open redirect vulnerabilities by disabling redirects at the PoolManager level will remain vulnerable. This issue has been patched in version 2.5.0.

Affected (1)

Products: Python: Urllib3

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Python Urllib3	Before 2.5.0

Related CWEs

URL Redirection to Untrusted Site ('Open Redirect')

A web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a Redirect. This simplifies phishing attacks.

References (3)

https://github.com/urllib3/urllib3/commit/f05b1329126d5be6de501f9d1e3e36738bc08857

Source: security-advisories@github.com

Patch

https://github.com/urllib3/urllib3/releases/tag/2.5.0

Source: security-advisories@github.com

https://github.com/urllib3/urllib3/security/advisories/GHSA-pq67-6m6q-mj2v

Source: security-advisories@github.com

ExploitVendor Advisory

Timeline

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