SUSE-SU-2026:23630-1: moderate: Security update for msgpack-c

[SLE-SECURITY-UPDATES]

# Security update for msgpack-c

Announcement ID: SUSE-SU-2026:23630-1  
Release Date: 2026-09-06T16:46:15Z  
Rating: moderate  
References:

  * bsc#1275911

  
Cross-References:

  * CVE-2026-72854

  
CVSS scores:

  * CVE-2026-72854 ( SUSE ):  5.3 CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:L
  * CVE-2026-72854 ( NVD ):  5.8
    CVSS:4.0/AV:L/AC:H/AT:P/PR:N/UI:P/VC:N/VI:H/VA:L/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-2026-72854 ( NVD ):  5.3 CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:L

  
Affected Products:

  * SUSE Linux Enterprise Server 16.0
  * SUSE Linux Enterprise Server for SAP applications 16.0

  
  
An update that solves one vulnerability can now be installed.

## Description:

This update for msgpack-c fixes the following issue:

Update to release 7.0.2:

  * CVE-2026-72854: Integer Overflow in msgpack_unpacker_expand_buffer Causes a
    False-Success Undersized Reservation (bsc#1275911).

## 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 16.0  
    zypper in -t patch SUSE-SLES-16.0-1616

  * SUSE Linux Enterprise Server 16.0  
    zypper in -t patch SUSE-SLES-16.0-1616

## Package List:

  * SUSE Linux Enterprise Server for SAP applications 16.0 (ppc64le x86_64)
    * libmsgpack-c2-7.0.2-160000.1.1
    * libmsgpack-c2-debuginfo-7.0.2-160000.1.1
    * msgpack-c-debugsource-7.0.2-160000.1.1
  * SUSE Linux Enterprise Server 16.0 (aarch64 ppc64le s390x x86_64)
    * libmsgpack-c2-7.0.2-160000.1.1
    * libmsgpack-c2-debuginfo-7.0.2-160000.1.1
    * msgpack-c-debugsource-7.0.2-160000.1.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-72854.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1275911

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