python311-urllib3-2.6.2-1.1 on GA media SUSE Patch security@suse.de SUSE Security Team openSUSE-SU-2026:10026-1 Final 1 1 2026-01-09T00:00:00Z current 2026-01-09T00:00:00Z 2026-01-09T00:00:00Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z python311-urllib3-2.6.2-1.1 on GA media These are all security issues fixed in the python311-urllib3-2.6.2-1.1 package on the GA media of openSUSE Tumbleweed. The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). openSUSE-Tumbleweed-2026-10026 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) https://www.suse.com/support/security/rating/ SUSE Security Ratings https://www.suse.com/security/cve/CVE-2025-66418/ SUSE CVE CVE-2025-66418 page https://www.suse.com/security/cve/CVE-2025-66471/ SUSE CVE CVE-2025-66471 page openSUSE Tumbleweed python311-urllib3-2.6.2-1.1 python312-urllib3-2.6.2-1.1 python313-urllib3-2.6.2-1.1 python311-urllib3-2.6.2-1.1 as a component of openSUSE Tumbleweed python312-urllib3-2.6.2-1.1 as a component of openSUSE Tumbleweed python313-urllib3-2.6.2-1.1 as a component of openSUSE Tumbleweed urllib3 is a user-friendly HTTP client library for Python. Starting in version 1.24 and prior to 2.6.0, the number of links in the decompression chain was unbounded allowing a malicious server to insert a virtually unlimited number of compression steps leading to high CPU usage and massive memory allocation for the decompressed data. This vulnerability is fixed in 2.6.0. CVE-2025-66418 openSUSE Tumbleweed:python311-urllib3-2.6.2-1.1 openSUSE Tumbleweed:python312-urllib3-2.6.2-1.1 openSUSE Tumbleweed:python313-urllib3-2.6.2-1.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/security/cve/CVE-2025-66418.html CVE-2025-66418 https://bugzilla.suse.com/1254866 SUSE Bug 1254866 urllib3 is a user-friendly HTTP client library for Python. Starting in version 1.0 and prior to 2.6.0, the Streaming API improperly handles highly compressed data. urllib3's streaming API is designed for the efficient handling of large HTTP responses by reading the content in chunks, rather than loading the entire response body into memory at once. When streaming a compressed response, urllib3 can perform decoding or decompression based on the HTTP Content-Encoding header (e.g., gzip, deflate, br, or zstd). The library must read compressed data from the network and decompress it until the requested chunk size is met. Any resulting decompressed data that exceeds the requested amount is held in an internal buffer for the next read operation. The decompression logic could cause urllib3 to fully decode a small amount of highly compressed data in a single operation. This can result in excessive resource consumption (high CPU usage and massive memory allocation for the decompressed data. CVE-2025-66471 openSUSE Tumbleweed:python311-urllib3-2.6.2-1.1 openSUSE Tumbleweed:python312-urllib3-2.6.2-1.1 openSUSE Tumbleweed:python313-urllib3-2.6.2-1.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/security/cve/CVE-2025-66471.html CVE-2025-66471 https://bugzilla.suse.com/1254867 SUSE Bug 1254867