openSUSE Leap 16.0 Python-urllib3 Moderate Resource Issues 2026-20271-1
opensuse
February 27, 2026
An update that solves 3 vulnerabilities and has 3 bug fixes can now be installed.
Description
This update for python-urllib3_1 fixes the following issues:
- CVE-2025-66471: excessive resource consumption via decompression of highly compressed data in Streaming API (bsc#1254867).
- CVE-2025-66418: resource exhaustion via unbounded number of links in the decompression chain (bsc#1254866).
- CVE-2026-21441: excessive resource consumption during decompression of data in HTTP redirect responses (bsc#1256331).
Patch instructions:
To install this openSUSE security update use the suse recommended installation methods
like YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:
- openSUSE Leap 16.0
zypper in -t patch openSUSE-Leap-16.0-313=1
Patch
Package List
- openSUSE Leap 16.0:
python313-urllib3_1-1.26.20-160000.3.1
References
* bsc#1254866
* bsc#1254867
* bsc#1256331
References:
* https://www.suse.com/security/cve/CVE-2025-66418.html
* https://www.suse.com/security/cve/CVE-2025-66471.html
* https://www.suse.com/security/cve/CVE-2026-21441.html
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Announcement ID: openSUSE-SU-2026:20271-1
Rating: moderate
Affected Products:
openSUSE Leap 16.0
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