CVE-2025-50181
BaseFortify
Publication date: 2025-06-19
Last updated on: 2025-09-18
Assigner: GitHub, Inc.
Description
Description
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| python | urllib3 | to 2.5.0 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-601 | The web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a redirect. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability in urllib3 versions prior to 2.5.0 allows an application to disable HTTP redirects globally by configuring the PoolManager with retries that disable redirects. However, this method does not effectively prevent Server-Side Request Forgery (SSRF) or open redirect attacks, meaning applications attempting to mitigate these issues by disabling redirects at the PoolManager level remain vulnerable. The issue was fixed in version 2.5.0.
How can this vulnerability impact me? :
If your application uses urllib3 versions before 2.5.0 and tries to prevent SSRF or open redirect vulnerabilities by disabling redirects at the PoolManager level, it will remain vulnerable to these attacks. This can lead to unauthorized internal network access or redirecting users to malicious sites, potentially compromising security.
What immediate steps should I take to mitigate this vulnerability?
Upgrade urllib3 to version 2.5.0 or later, where this issue has been patched. Avoid disabling redirects at the PoolManager level to prevent remaining vulnerable to SSRF or open redirect attacks.