SUSE-SU-2026:1137-1: important: Security update for expat

[SLE-UPDATES]

# Security update for expat

Announcement ID: SUSE-SU-2026:1137-1  
Release Date: 2026-03-28T02:34:02Z  
Rating: important  
References:

  * bsc#1259711
  * bsc#1259726
  * bsc#1259729

  
Cross-References:

  * CVE-2026-32776
  * CVE-2026-32777
  * CVE-2026-32778

  
CVSS scores:

  * CVE-2026-32776 ( 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-2026-32776 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-32776 ( NVD ):  4.0 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
  * CVE-2026-32776 ( NVD ):  5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-32777 ( 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-2026-32777 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-32777 ( NVD ):  4.0 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
  * CVE-2026-32777 ( NVD ):  5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-32778 ( SUSE ):  8.2
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-32778 ( SUSE ):  5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-32778 ( NVD ):  2.9 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
  * CVE-2026-32778 ( NVD ):  5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

  
Affected Products:

  * SUSE Linux Enterprise Micro 5.2
  * SUSE Linux Enterprise Micro for Rancher 5.2

  
  
An update that solves three vulnerabilities can now be installed.

## Description:

This update for expat fixes the following issues:

  * CVE-2026-32776: NULL pointer dereference when processing empty external
    parameter entities inside an entity declaration value (bsc#1259726).
  * CVE-2026-32777: denial of service due to infinite loop in DTD content
    parsing (bsc#1259711).
  * CVE-2026-32778: NULL pointer dereference in `setContext` on retry after an
    out-of-memory condition (bsc#1259729).

## 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 5.2  
    zypper in -t patch SUSE-SUSE-MicroOS-5.2-2026-1137=1

  * SUSE Linux Enterprise Micro for Rancher 5.2  
    zypper in -t patch SUSE-SUSE-MicroOS-5.2-2026-1137=1

## Package List:

  * SUSE Linux Enterprise Micro 5.2 (aarch64 s390x x86_64)
    * expat-debugsource-2.7.1-150000.3.45.1
    * libexpat1-2.7.1-150000.3.45.1
    * expat-debuginfo-2.7.1-150000.3.45.1
    * libexpat1-debuginfo-2.7.1-150000.3.45.1
  * SUSE Linux Enterprise Micro for Rancher 5.2 (aarch64 s390x x86_64)
    * expat-debugsource-2.7.1-150000.3.45.1
    * libexpat1-2.7.1-150000.3.45.1
    * expat-debuginfo-2.7.1-150000.3.45.1
    * libexpat1-debuginfo-2.7.1-150000.3.45.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-32776.html
  * https://www.suse.com/security/cve/CVE-2026-32777.html
  * https://www.suse.com/security/cve/CVE-2026-32778.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1259711
  * https://bugzilla.suse.com/show_bug.cgi?id=1259726
  * https://bugzilla.suse.com/show_bug.cgi?id=1259729

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