What is CVE-2025-50182?

CVE-2025-50182 is a medium-severity vulnerability in Urllib3, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 5.3/10. Published 2025-06-19.

How severe is CVE-2025-50182?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Is CVE-2025-50182 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Open Redirect in Urllib3

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…

Vulnerability class: Open Redirect

EPSS: 0.001 (20.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N.

Affected products

Urllib3 — versions >= 2.2.0, < 2.5.0

Weakness classification (CWE)

CWE-601 — URL Redirection to Untrusted Site (Open Redirect)

Public proof-of-concept exploits

References

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

Frequently asked questions

What is CVE-2025-50182?: CVE-2025-50182 is a medium-severity vulnerability in Urllib3, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 5.3/10. Published 2025-06-19.
How severe is CVE-2025-50182?: Medium severity. CVSS v3 base score is 5.3 out of 10.
Is CVE-2025-50182 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.