Packages
- python-urllib3 - HTTP library with thread-safe connection pooling
Details
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)
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)
Update instructions
In general, a standard system update will make all the necessary changes.
Learn more about how to get the fixes.The problem can be corrected by updating your system to the following package versions:
| Ubuntu Release | Package Version | ||
|---|---|---|---|
| 25.04 plucky | python3-urllib3 – 2.3.0-2ubuntu0.1 | ||
| 24.10 oracular | python3-urllib3 – 2.0.7-2ubuntu0.2 | ||
| 24.04 noble | python3-urllib3 – 2.0.7-1ubuntu0.2 | ||
| 22.04 jammy | python3-urllib3 – 1.26.5-1~exp1ubuntu0.3 | ||
| 20.04 focal | python3-urllib3 – 1.25.8-2ubuntu0.4+esm1 | ||
| 18.04 bionic | python-urllib3 – 1.22-1ubuntu0.18.04.2+esm3 | ||
| python3-urllib3 – 1.22-1ubuntu0.18.04.2+esm3 | |||
| 16.04 xenial | python-urllib3 – 1.13.1-2ubuntu0.16.04.4+esm3 | ||
| python3-urllib3 – 1.13.1-2ubuntu0.16.04.4+esm3 | |||
Reduce your security exposure
Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.