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SUSE Python-urllib3 Moderate Resource Consumption Vulnerability 2026-0255-2

suse
Calendar Grey July 23, 2026
Scroller Suse
Moderate security update for python-urllib3 addressing resource consumption issues, available for SUSE systems.
A security update for python-urllib3 addresses CVE-2026-21441, which involves excessive resource consumption during decompression of HTTP redirect response data, applicable to vari...

Summary

## This update for python-urllib3 fixes the following issues: * CVE-2026-21441: Fixed excessive resource consumption during decompression of data in HTTP redirect responses (bsc#1256331) ## Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch". Alternatively you can run the command listed for your product: * SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-LTSS-2026-255=1 * SUSE Linux Enterprise Server 15 SP5 LTSS zypper in -t patch SUSE-SLE-Product-SLES-15-SP5-LTSS-2026-255=1 * SUSE Linux Enterprise Server 15 SP4 LTSS zypper in -t patch SUSE-SLE-Product-SLES-15-SP4-LTSS-2026-255=1 * SUSE Linux Enterprise Server for SAP Applications 15 SP5

Topics%20covered

Topics Covered

security advisory moderate update SuSE resource consumption python-urllib3

References

* bsc#1256331

Cross-

* CVE-2026-21441

CVSS scores:

* CVE-2026-21441 ( SUSE ): 2.3

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

* CVE-2026-21441 ( SUSE ): 4.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

* CVE-2026-21441 ( NVD ): 8.9

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

* CVE-2026-21441 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

* CVE-2026-21441 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Products:

* SUSE Linux Enterprise High Performance Computing 15 SP4

* SUSE Linux Enterprise High Performance Computing 15 SP5

Severity
moderate
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:0255-2
Release Date: 2026-07-23T12:16:46Z
Rating: moderate

Topics%20covered

Topics Covered

security advisory moderate update SuSE resource consumption python-urllib3

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