CVE-2025-50181

Publication date 19 June 2025

Last updated 26 June 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

5.3 · Medium

Score breakdown

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.

Read the notes from the security team

Status

Package Ubuntu Release Status
python-pip 25.04 plucky
Fixed 25.0+dfsg-1ubuntu0.1
24.10 oracular
Fixed 24.2+dfsg-1ubuntu0.2
24.04 LTS noble
Fixed 24.0+dfsg-1ubuntu1.2
22.04 LTS jammy
Fixed 22.0.2+dfsg-1ubuntu0.6
20.04 LTS focal
Not affected
18.04 LTS bionic
Not affected
16.04 LTS xenial
Not affected
14.04 LTS trusty
Not affected
python-urllib3 25.04 plucky
Fixed 2.3.0-2ubuntu0.1
24.10 oracular
Fixed 2.0.7-2ubuntu0.2
24.04 LTS noble
Fixed 2.0.7-1ubuntu0.2
22.04 LTS jammy
Fixed 1.26.5-1~exp1ubuntu0.3
20.04 LTS focal
Fixed 1.25.8-2ubuntu0.4+esm1
18.04 LTS bionic
Fixed 1.22-1ubuntu0.18.04.2+esm3
16.04 LTS xenial
Fixed 1.13.1-2ubuntu0.16.04.4+esm3
14.04 LTS trusty
Not affected

Get expanded security coverage with Ubuntu Pro

Reduce your average CVE exposure time from 98 days to 1 day with expanded CVE patching, ten-years security maintenance and optional support for the full stack of open-source applications. Free for personal use.

Get Ubuntu Pro

Notes

mdeslaur

On focal and earlier, the python-pip package bundles python-urllib3 binaries when built. After updating python-urllib3, a no-change rebuild of python-pip is required. On jammy and later, python-urllib3 is bundled in the python-pip package and needs to be patched.

Severity score breakdown

Parameter Value
Base score 5.3 · Medium
Attack vector Network
Attack complexity High
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact None
Availability impact None
Vector CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

References

Related Ubuntu Security Notices (USN)

Other references