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.

The remote Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2025-9285942ac9 advisory.

    Automatic update for pypy-7.3.20-2.fc43.

    ##### **Changelog**

    ```
    * Thu Jul 10 2025 Charalampos Stratakis <cstratak@redhat.com> - 7.3.20-1
    - Update to 7.3.20
    - Fixes: rhbz#2376234
    * Thu Jul 10 2025 Charalampos Stratakis <cstratak@redhat.com> - 7.3.19-2
    - Security fixes for CVE-2025-47273, CVE-2024-47081 and CVE-2025-50181
    - Fixes: rhbz#2367430, rhbz#2372476, rhbz#2373817

    ```

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of python-urllib3 installed on the remote host is prior to 1.25.9-1. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2025-2915 advisory.

    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. (CVE-2025-50181)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2025-1058 advisory.

    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. (CVE-2025-50181)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2025-1059 advisory.

    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. (CVE-2025-50181)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The version of python3-urllib3 installed on the remote host is prior to 1.25.6-2. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2025-2916 advisory.

    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. (CVE-2025-50181)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 24.10 / 25.04 host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-7599-1 advisory.

    Jacob Sandum discovered that urllib3 handled redirects even when they were explicitly disabled while using     the PoolManager. An attacker could possibly use this issue to obtain sensitive information.
    (CVE-2025-50181)

    Illia Volochii discovered that urllib3 incorrectly handled retry and redirect parameters when using     Node.js. An attacker could possibly use this issue to obtain sensitive information. This issue only     affected Ubuntu 25.04. (CVE-2025-50182)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
241938	Fedora 43 : pypy (2025-9285942ac9)	Nessus	Fedora Local Security Checks	high
241781	Amazon Linux 2 : python-urllib3 (ALAS-2025-2915)	Nessus	Amazon Linux Local Security Checks	medium
241756	Amazon Linux 2023 : python3-pip, python3-pip-wheel (ALAS2023-2025-1058)	Nessus	Amazon Linux Local Security Checks	medium
241753	Amazon Linux 2023 : python3-urllib3 (ALAS2023-2025-1059)	Nessus	Amazon Linux Local Security Checks	medium
241728	Amazon Linux 2 : python3-urllib3 (ALAS-2025-2916)	Nessus	Amazon Linux Local Security Checks	medium
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)	Nessus	Ubuntu Local Security Checks	medium

Detections

Analytics

CVE-2025-50181

medium

Tenable Plugins

high

medium

medium

medium

medium

medium