SUSE-SU-2026:23169-1: important: Security update for python-msgpack

[SLE-UPDATES]

# Security update for python-msgpack

Announcement ID: SUSE-SU-2026:23169-1  
Release Date: 2026-08-06T13:56:28Z  
Rating: important  
References:

  * bsc#1269947

  
Cross-References:

  * CVE-2026-57585

  
CVSS scores:

  * CVE-2026-57585 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-57585 ( 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 Micro 6.1

  
  
An update that solves one vulnerability can now be installed.

## Description:

This update for python-msgpack fixes the following issue

  * CVE-2026-57585: `Unpacker` reuse after a caught error can lead to an out-of-
    bounds read and a crash (bsc#1269947).

## 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 Micro 6.1  
    zypper in -t patch SUSE-SLE-Micro-6.1-660=1

## Package List:

  * SUSE Linux Micro 6.1 (aarch64 ppc64le s390x x86_64)
    * python-msgpack-debugsource-1.0.5-slfo.1.1_2.1
    * python311-msgpack-debuginfo-1.0.5-slfo.1.1_2.1
    * python311-msgpack-1.0.5-slfo.1.1_2.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-57585.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1269947

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