SUSE-SU-2026:21631-1: moderate: Security update for avahi

[SLE-UPDATES]

# Security update for avahi

Announcement ID: SUSE-SU-2026:21631-1  
Release Date: 2026-05-09T15:47:12Z  
Rating: moderate  
References:

  * bsc#1261546

  
Cross-References:

  * CVE-2026-34933

  
CVSS scores:

  * CVE-2026-34933 ( SUSE ):  5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-34933 ( 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 Micro 6.1

  
  
An update that solves one vulnerability can now be installed.

## Description:

This update for avahi fixes the following issues:

  * CVE-2026-34933: reachable assertion in `transport_flags_from_domain` can
    crash the `avahi-daemon` (bsc#1261546).

## 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-6.1-518=1

## Package List:

  * SUSE Linux Micro 6.1 (aarch64 ppc64le s390x x86_64)
    * libavahi-core7-0.8-slfo.1.1_7.1
    * libavahi-common3-debuginfo-0.8-slfo.1.1_7.1
    * libavahi-common3-0.8-slfo.1.1_7.1
    * avahi-0.8-slfo.1.1_7.1
    * libavahi-client3-0.8-slfo.1.1_7.1
    * avahi-debugsource-0.8-slfo.1.1_7.1
    * libavahi-client3-debuginfo-0.8-slfo.1.1_7.1
    * avahi-debuginfo-0.8-slfo.1.1_7.1
    * libavahi-core7-debuginfo-0.8-slfo.1.1_7.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-34933.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1261546

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