SUSE-SU-2026:21994-1: moderate: Security update for csync2

Mon Jun 8 20:35:11 UTC 2026

# Security update for csync2

Announcement ID: SUSE-SU-2026:21994-1  
Release Date: 2026-06-03T10:13:39Z  
Rating: moderate  
References:

  * bsc#1262472
  * jsc#PED-14855

Cross-References:

  * CVE-2026-41051

CVSS scores:

  * CVE-2026-41051 ( SUSE ):  5.1
    CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-41051 ( SUSE ):  5.0 CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H
  * CVE-2026-41051 ( NVD ):  5.1
    CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:H/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-2026-41051 ( NVD ):  5.0 CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H

Affected Products:

  * SUSE Linux Enterprise Server High Availability Extension 16.0

An update that solves one vulnerability and contains one feature can now be
installed.

## Description:

This update for csync2 fixes the following issues

Security issue:

  * CVE-2026-41051: uses insecure temporary directories when compiled with C99
    or later (bsc#1262472).

Non security issue:

  * Fix packages for Immutable Mode (jsc#PED-14855).

## 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 High Availability Extension 16.0  
    zypper in -t patch SUSE-SLES-HA-16.0-886=1

## Package List:

  * SUSE Linux Enterprise Server High Availability Extension 16.0 (ppc64le s390x
    x86_64)
    * csync2-2.0+git.1600444747.83b3644-160000.3.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-41051.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1262472
  * https://jira.suse.com/browse/PED-14855

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