SUSE-SU-2026:4076-1: important: Security update for python-tornado6

SLE-SECURITY-UPDATES null at suse.de
Tue Sep 8 12:34:51 UTC 2026 

# Security update for python-tornado6

Announcement ID: SUSE-SU-2026:4076-1  
Release Date: 2026-09-08T07:11:28Z  
Rating: important  
References:

  * bsc#1277725

  
Cross-References:

  * CVE-2026-82397

  
CVSS scores:

  * CVE-2026-82397 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-82397 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

  
Affected Products:

  * openSUSE Leap 15.4
  * Python 3 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
  * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4
  * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5
  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP4
  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP5
  * SUSE Linux Enterprise Server 15 SP4
  * SUSE Linux Enterprise Server 15 SP4 LTSS
  * SUSE Linux Enterprise Server 15 SP5
  * SUSE Linux Enterprise Server 15 SP5 LTSS
  * SUSE Linux Enterprise Server 15 SP6
  * SUSE Linux Enterprise Server 15 SP6 LTSS
  * SUSE Linux Enterprise Server 15 SP7
  * SUSE Linux Enterprise Server for SAP Applications 15 SP4
  * SUSE Linux Enterprise Server for SAP Applications 15 SP5
  * SUSE Linux Enterprise Server for SAP Applications 15 SP6
  * SUSE Linux Enterprise Server for SAP Applications 15 SP7

  
  
An update that solves one vulnerability can now be installed.

## Description:

This update for python-tornado6 fixes the following issue

  * CVE-2026-82397: an unauthenticated request body containing millions of
    separator-delimited fields can synchronously stall the single-threaded event
    loop and delay every connection (bsc#1277725).

## 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 Server for SAP Applications 15 SP4  
    zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP4-2026-4076=1

  * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4  
    zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-ESPOS-2026-4076=1

  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP4  
    zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-LTSS-2026-4076=1

  * openSUSE Leap 15.4  
    zypper in -t patch SUSE-2026-4076=1

  * SUSE Linux Enterprise Server for SAP Applications 15 SP5  
    zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP5-2026-4076=1

  * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5  
    zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-ESPOS-2026-4076=1

  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP5  
    zypper in -t patch SUSE-SLE-Product-HPC-15-SP5-LTSS-2026-4076=1

  * SUSE Linux Enterprise Server for SAP Applications 15 SP6  
    zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP6-2026-4076=1

  * SUSE Linux Enterprise Server 15 SP4 LTSS  
    zypper in -t patch SUSE-SLE-Product-SLES-15-SP4-LTSS-2026-4076=1

  * Python 3 Module 15-SP7  
    zypper in -t patch SUSE-SLE-Module-Python3-15-SP7-2026-4076=1

  * SUSE Linux Enterprise Server 15 SP5 LTSS  
    zypper in -t patch SUSE-SLE-Product-SLES-15-SP5-LTSS-2026-4076=1

  * SUSE Linux Enterprise Server 15 SP6 LTSS  
    zypper in -t patch SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-4076=1

## Package List:

  * SUSE Linux Enterprise Server for SAP Applications 15 SP4 (ppc64le x86_64)
    * python311-tornado6-debuginfo-6.3.2-150400.9.24.1
    * python311-tornado6-6.3.2-150400.9.24.1
    * python-tornado6-debugsource-6.3.2-150400.9.24.1
  * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 (aarch64
    x86_64)
    * python311-tornado6-debuginfo-6.3.2-150400.9.24.1
    * python311-tornado6-6.3.2-150400.9.24.1
    * python-tornado6-debugsource-6.3.2-150400.9.24.1
  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 (aarch64
    x86_64)
    * python311-tornado6-debuginfo-6.3.2-150400.9.24.1
    * python311-tornado6-6.3.2-150400.9.24.1
    * python-tornado6-debugsource-6.3.2-150400.9.24.1
  * openSUSE Leap 15.4 (aarch64 i586 ppc64le s390x x86_64)
    * python311-tornado6-debuginfo-6.3.2-150400.9.24.1
    * python311-tornado6-6.3.2-150400.9.24.1
    * python-tornado6-debugsource-6.3.2-150400.9.24.1
  * SUSE Linux Enterprise Server for SAP Applications 15 SP5 (ppc64le x86_64)
    * python311-tornado6-debuginfo-6.3.2-150400.9.24.1
    * python311-tornado6-6.3.2-150400.9.24.1
    * python-tornado6-debugsource-6.3.2-150400.9.24.1
  * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5 (aarch64
    x86_64)
    * python311-tornado6-debuginfo-6.3.2-150400.9.24.1
    * python311-tornado6-6.3.2-150400.9.24.1
    * python-tornado6-debugsource-6.3.2-150400.9.24.1
  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP5 (aarch64
    x86_64)
    * python311-tornado6-debuginfo-6.3.2-150400.9.24.1
    * python311-tornado6-6.3.2-150400.9.24.1
    * python-tornado6-debugsource-6.3.2-150400.9.24.1
  * SUSE Linux Enterprise Server for SAP Applications 15 SP6 (ppc64le x86_64)
    * python311-tornado6-debuginfo-6.3.2-150400.9.24.1
    * python311-tornado6-6.3.2-150400.9.24.1
    * python-tornado6-debugsource-6.3.2-150400.9.24.1
  * SUSE Linux Enterprise Server 15 SP4 LTSS (aarch64 ppc64le s390x x86_64)
    * python311-tornado6-debuginfo-6.3.2-150400.9.24.1
    * python311-tornado6-6.3.2-150400.9.24.1
    * python-tornado6-debugsource-6.3.2-150400.9.24.1
  * Python 3 Module 15-SP7 (aarch64 ppc64le s390x x86_64)
    * python311-tornado6-debuginfo-6.3.2-150400.9.24.1
    * python311-tornado6-6.3.2-150400.9.24.1
    * python-tornado6-debugsource-6.3.2-150400.9.24.1
  * SUSE Linux Enterprise Server 15 SP5 LTSS (aarch64 ppc64le s390x x86_64)
    * python311-tornado6-debuginfo-6.3.2-150400.9.24.1
    * python311-tornado6-6.3.2-150400.9.24.1
    * python-tornado6-debugsource-6.3.2-150400.9.24.1
  * SUSE Linux Enterprise Server 15 SP6 LTSS (aarch64 ppc64le s390x x86_64)
    * python311-tornado6-debuginfo-6.3.2-150400.9.24.1
    * python311-tornado6-6.3.2-150400.9.24.1
    * python-tornado6-debugsource-6.3.2-150400.9.24.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-82397.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1277725

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