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SUSE Python-Tornado Important Denial Service Issue 2026-1171-1

suse
Calendar Grey April 2, 2026
Dist Suse Esm H88
Update resolves one issue in Python Tornado and enhances security against Denial of Service.
An update that solves one vulnerability and has two security fixes can now be installed.

Summary

## This update for python-tornado fixes the following issues: * CVE-2026-31958: parsing large multipart bodies with many parts can cause a denial of service (bsc#1259553). * incomplete validation of cookie attributes allows for injection of user- controlled values in other cookie attributes (bsc#1259630). ## 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 Micro 5.5 zypper in -t patch SUSE-SLE-Micro-5.5-2026-1171=1 * Basesystem Module 15-SP7 zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP7-2026-1171=1 * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4

Topics%20covered

Topics Covered

security advisory denial service SuSE security fix important python-tornado

References

* bsc#1254905

* bsc#1259553

* bsc#1259630

Cross-

* CVE-2026-31958

CVSS scores:

* CVE-2026-31958 ( SUSE ): 8.7

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

* CVE-2026-31958 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

* CVE-2026-31958 ( NVD ): 8.7

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/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-2026-31958 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Products:

* Basesystem Module 15-SP7

* SUSE Linux Enterprise Desktop 15 SP7

* SUSE Linux Enterprise High Performance Computing 15 SP4

* SUSE Linux Enterprise High Performance Computing 15 SP5

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:1171-1
Release Date: 2026-04-02T08:57:10Z
Rating: important

Topics%20covered

Topics Covered

security advisory denial service SuSE security fix important python-tornado

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