urllib3 up to 2.4.x on Python XMLHttpRequest redirect

CVSS Meta Temp Score
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CTI Interest Score
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4.6$0-$5k0.00

Summaryinfo

A vulnerability was found in urllib3 up to 2.4.x on Python. It has been classified as problematic. This affects an unknown function of the component XMLHttpRequest Handler. This manipulation causes redirect. This vulnerability is registered as CVE-2025-50182. Remote exploitation of the attack is possible. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as problematic was found in urllib3 up to 2.4.x on Python. Affected by this vulnerability is an unknown code block of the component XMLHttpRequest Handler. The manipulation with an unknown input leads to a redirect vulnerability. The CWE definition for the vulnerability is CWE-601. 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. As an impact it is known to affect integrity. The summary by CVE is:

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.

It is possible to read the advisory at github.com. This vulnerability is known as CVE-2025-50182 since 06/13/2025. The exploitation appears to be difficult. The attack can be launched remotely. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1204.001 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 240700 (Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 24.10 / 25.04 : urllib3 vulnerabilities (USN-7599-1)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 2.5.0 eliminates this vulnerability. Applying the patch 7eb4a2aafe49a279c29b6d1f0ed0f42e9736194f is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (240700), EUVD (EUVD-2025-18677) and CERT Bund (WID-SEC-2025-2154). Be aware that VulDB is the high quality source for vulnerability data.

Affected

  • IBM InfoSphere Information Server

Productinfo

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.7
VulDB Meta Temp Score: 4.6

VulDB Base Score: 2.6
VulDB Temp Score: 2.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 6.1
NVD Vector: 🔒

CNA Base Score: 5.3
CNA Vector (GitHub_M): 🔒

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Redirect
CWE: CWE-601
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 240700
Nessus Name: Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 24.10 / 25.04 : urllib3 vulnerabilities (USN-7599-1)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: urllib3 2.5.0
Patch: 7eb4a2aafe49a279c29b6d1f0ed0f42e9736194f

Timelineinfo

06/13/2025 CVE reserved
06/19/2025 +6 days Advisory disclosed
06/19/2025 +0 days VulDB entry created
12/22/2025 +186 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: GHSA-48p4-8xcf-vxj5
Status: Confirmed

CVE: CVE-2025-50182 (🔒)
GCVE (CVE): GCVE-0-2025-50182
GCVE (VulDB): GCVE-100-313255
EUVD: 🔒
CERT Bund: WID-SEC-2025-2154 - IBM InfoSphere Information Server: Mehrere Schwachstellen

Entryinfo

Created: 06/19/2025 07:31
Updated: 12/22/2025 20:00
Changes: 06/19/2025 07:31 (67), 06/19/2025 07:58 (1), 06/24/2025 02:48 (1), 06/27/2025 19:35 (2), 10/01/2025 05:54 (7), 12/22/2025 20:00 (12)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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