SUSE-SU-2026:1394-1: important: Security update for corosync

SLE-SECURITY-UPDATES null at suse.de
Thu Apr 16 16:30:47 UTC 2026 


# Security update for corosync

Announcement ID: SUSE-SU-2026:1394-1  
Release Date: 2026-04-16T10:22:10Z  
Rating: important  
References:

  * bsc#1261299
  * bsc#1261300

  
Cross-References:

  * CVE-2026-35091
  * CVE-2026-35092

  
CVSS scores:

  * CVE-2026-35091 ( SUSE ):  8.8
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-35091 ( SUSE ):  8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
  * CVE-2026-35091 ( NVD ):  8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
  * CVE-2026-35092 ( 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-2026-35092 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-35092 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

  
Affected Products:

  * openSUSE Leap 15.3
  * openSUSE Leap 15.6
  * SUSE Linux Enterprise High Availability Extension 15 SP4
  * SUSE Linux Enterprise High Availability Extension 15 SP5
  * SUSE Linux Enterprise High Availability Extension 15 SP6
  * SUSE Linux Enterprise High Availability Extension 15 SP7
  * SUSE Linux Enterprise High Performance Computing 15 SP4
  * SUSE Linux Enterprise High Performance Computing 15 SP5
  * SUSE Linux Enterprise Server 15 SP4
  * SUSE Linux Enterprise Server 15 SP5
  * SUSE Linux Enterprise Server 15 SP6
  * SUSE Linux Enterprise Server 15 SP7
  * SUSE Linux Enterprise Server for SAP Applications 15 SP4
  * SUSE Linux Enterprise Server for SAP Applications 15 SP5
  * SUSE Linux Enterprise Server for SAP Applications 15 SP6
  * SUSE Linux Enterprise Server for SAP Applications 15 SP7
  * SUSE Manager Proxy 4.3
  * SUSE Manager Retail Branch Server 4.3
  * SUSE Manager Server 4.3

  
  
An update that solves two vulnerabilities can now be installed.

## Description:

This update for corosync fixes the following issues:

  * CVE-2026-35091: Denial of Service and information disclosure via crafted UDP
    packet (bsc#1261299).
  * CVE-2026-35092: Denial of Service via integer overflow in join message
    validation (bsc#1261300).

## 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:

  * openSUSE Leap 15.3  
    zypper in -t patch SUSE-2026-1394=1

  * openSUSE Leap 15.6  
    zypper in -t patch openSUSE-SLE-15.6-2026-1394=1

  * SUSE Linux Enterprise High Availability Extension 15 SP4  
    zypper in -t patch SUSE-SLE-Product-HA-15-SP4-2026-1394=1

  * SUSE Linux Enterprise High Availability Extension 15 SP5  
    zypper in -t patch SUSE-SLE-Product-HA-15-SP5-2026-1394=1

  * SUSE Linux Enterprise High Availability Extension 15 SP6  
    zypper in -t patch SUSE-SLE-Product-HA-15-SP6-2026-1394=1

  * SUSE Linux Enterprise High Availability Extension 15 SP7  
    zypper in -t patch SUSE-SLE-Product-HA-15-SP7-2026-1394=1

## Package List:

  * openSUSE Leap 15.3 (aarch64 ppc64le s390x x86_64 i586)
    * corosync-qnetd-debuginfo-2.4.6-150300.12.16.1
    * libsam4-debuginfo-2.4.6-150300.12.16.1
    * libsam4-2.4.6-150300.12.16.1
    * libtotem_pg5-2.4.6-150300.12.16.1
    * libcpg4-2.4.6-150300.12.16.1
    * libvotequorum8-2.4.6-150300.12.16.1
    * libcfg6-debuginfo-2.4.6-150300.12.16.1
    * corosync-2.4.6-150300.12.16.1
    * corosync-debugsource-2.4.6-150300.12.16.1
    * corosync-qdevice-2.4.6-150300.12.16.1
    * corosync-debuginfo-2.4.6-150300.12.16.1
    * libcmap4-debuginfo-2.4.6-150300.12.16.1
    * corosync-testagents-2.4.6-150300.12.16.1
    * libtotem_pg5-debuginfo-2.4.6-150300.12.16.1
    * corosync-qdevice-debuginfo-2.4.6-150300.12.16.1
    * libcorosync-devel-2.4.6-150300.12.16.1
    * corosync-qnetd-2.4.6-150300.12.16.1
    * libcpg4-debuginfo-2.4.6-150300.12.16.1
    * libcmap4-2.4.6-150300.12.16.1
    * corosync-testagents-debuginfo-2.4.6-150300.12.16.1
    * libquorum5-2.4.6-150300.12.16.1
    * libvotequorum8-debuginfo-2.4.6-150300.12.16.1
    * libcfg6-2.4.6-150300.12.16.1
    * libcorosync_common4-debuginfo-2.4.6-150300.12.16.1
    * libcorosync_common4-2.4.6-150300.12.16.1
    * libquorum5-debuginfo-2.4.6-150300.12.16.1
  * openSUSE Leap 15.3 (x86_64)
    * libquorum5-32bit-debuginfo-2.4.6-150300.12.16.1
    * libsam4-32bit-debuginfo-2.4.6-150300.12.16.1
    * libsam4-32bit-2.4.6-150300.12.16.1
    * libtotem_pg5-32bit-2.4.6-150300.12.16.1
    * libcorosync_common4-32bit-debuginfo-2.4.6-150300.12.16.1
    * libcorosync_common4-32bit-2.4.6-150300.12.16.1
    * libcfg6-32bit-2.4.6-150300.12.16.1
    * libcpg4-32bit-debuginfo-2.4.6-150300.12.16.1
    * libquorum5-32bit-2.4.6-150300.12.16.1
    * libcmap4-32bit-2.4.6-150300.12.16.1
    * libcmap4-32bit-debuginfo-2.4.6-150300.12.16.1
    * libtotem_pg5-32bit-debuginfo-2.4.6-150300.12.16.1
    * libvotequorum8-32bit-2.4.6-150300.12.16.1
    * libvotequorum8-32bit-debuginfo-2.4.6-150300.12.16.1
    * libcfg6-32bit-debuginfo-2.4.6-150300.12.16.1
    * libcpg4-32bit-2.4.6-150300.12.16.1
  * openSUSE Leap 15.3 (aarch64_ilp32)
    * libcorosync_common4-64bit-2.4.6-150300.12.16.1
    * libcpg4-64bit-2.4.6-150300.12.16.1
    * libtotem_pg5-64bit-2.4.6-150300.12.16.1
    * libtotem_pg5-64bit-debuginfo-2.4.6-150300.12.16.1
    * libquorum5-64bit-debuginfo-2.4.6-150300.12.16.1
    * libcfg6-64bit-debuginfo-2.4.6-150300.12.16.1
    * libvotequorum8-64bit-debuginfo-2.4.6-150300.12.16.1
    * libsam4-64bit-2.4.6-150300.12.16.1
    * libcorosync_common4-64bit-debuginfo-2.4.6-150300.12.16.1
    * libcpg4-64bit-debuginfo-2.4.6-150300.12.16.1
    * libsam4-64bit-debuginfo-2.4.6-150300.12.16.1
    * libvotequorum8-64bit-2.4.6-150300.12.16.1
    * libquorum5-64bit-2.4.6-150300.12.16.1
    * libcmap4-64bit-2.4.6-150300.12.16.1
    * libcmap4-64bit-debuginfo-2.4.6-150300.12.16.1
    * libcfg6-64bit-2.4.6-150300.12.16.1
  * openSUSE Leap 15.6 (aarch64 ppc64le s390x x86_64)
    * corosync-qnetd-debuginfo-2.4.6-150300.12.16.1
    * libsam4-debuginfo-2.4.6-150300.12.16.1
    * libsam4-2.4.6-150300.12.16.1
    * libtotem_pg5-2.4.6-150300.12.16.1
    * libcpg4-2.4.6-150300.12.16.1
    * libvotequorum8-2.4.6-150300.12.16.1
    * libcfg6-debuginfo-2.4.6-150300.12.16.1
    * corosync-2.4.6-150300.12.16.1
    * corosync-debugsource-2.4.6-150300.12.16.1
    * corosync-qdevice-2.4.6-150300.12.16.1
    * corosync-debuginfo-2.4.6-150300.12.16.1
    * libcmap4-debuginfo-2.4.6-150300.12.16.1
    * corosync-testagents-2.4.6-150300.12.16.1
    * libtotem_pg5-debuginfo-2.4.6-150300.12.16.1
    * corosync-qdevice-debuginfo-2.4.6-150300.12.16.1
    * libcorosync-devel-2.4.6-150300.12.16.1
    * corosync-qnetd-2.4.6-150300.12.16.1
    * libcpg4-debuginfo-2.4.6-150300.12.16.1
    * libcmap4-2.4.6-150300.12.16.1
    * corosync-testagents-debuginfo-2.4.6-150300.12.16.1
    * libquorum5-2.4.6-150300.12.16.1
    * libvotequorum8-debuginfo-2.4.6-150300.12.16.1
    * libcfg6-2.4.6-150300.12.16.1
    * libcorosync_common4-debuginfo-2.4.6-150300.12.16.1
    * libcorosync_common4-2.4.6-150300.12.16.1
    * libquorum5-debuginfo-2.4.6-150300.12.16.1
  * openSUSE Leap 15.6 (x86_64)
    * libquorum5-32bit-debuginfo-2.4.6-150300.12.16.1
    * libsam4-32bit-debuginfo-2.4.6-150300.12.16.1
    * libsam4-32bit-2.4.6-150300.12.16.1
    * libtotem_pg5-32bit-2.4.6-150300.12.16.1
    * libcorosync_common4-32bit-debuginfo-2.4.6-150300.12.16.1
    * libcorosync_common4-32bit-2.4.6-150300.12.16.1
    * libcfg6-32bit-2.4.6-150300.12.16.1
    * libcpg4-32bit-debuginfo-2.4.6-150300.12.16.1
    * libquorum5-32bit-2.4.6-150300.12.16.1
    * libcmap4-32bit-2.4.6-150300.12.16.1
    * libcmap4-32bit-debuginfo-2.4.6-150300.12.16.1
    * libtotem_pg5-32bit-debuginfo-2.4.6-150300.12.16.1
    * libvotequorum8-32bit-2.4.6-150300.12.16.1
    * libvotequorum8-32bit-debuginfo-2.4.6-150300.12.16.1
    * libcfg6-32bit-debuginfo-2.4.6-150300.12.16.1
    * libcpg4-32bit-2.4.6-150300.12.16.1
  * SUSE Linux Enterprise High Availability Extension 15 SP4 (aarch64 ppc64le
    s390x x86_64)
    * corosync-qnetd-debuginfo-2.4.6-150300.12.16.1
    * libsam4-debuginfo-2.4.6-150300.12.16.1
    * libsam4-2.4.6-150300.12.16.1
    * libtotem_pg5-2.4.6-150300.12.16.1
    * libcpg4-2.4.6-150300.12.16.1
    * libvotequorum8-2.4.6-150300.12.16.1
    * libcfg6-debuginfo-2.4.6-150300.12.16.1
    * corosync-2.4.6-150300.12.16.1
    * corosync-debugsource-2.4.6-150300.12.16.1
    * corosync-qdevice-2.4.6-150300.12.16.1
    * corosync-debuginfo-2.4.6-150300.12.16.1
    * libcmap4-debuginfo-2.4.6-150300.12.16.1
    * corosync-testagents-2.4.6-150300.12.16.1
    * libtotem_pg5-debuginfo-2.4.6-150300.12.16.1
    * corosync-qdevice-debuginfo-2.4.6-150300.12.16.1
    * libcorosync-devel-2.4.6-150300.12.16.1
    * corosync-qnetd-2.4.6-150300.12.16.1
    * libcpg4-debuginfo-2.4.6-150300.12.16.1
    * libcmap4-2.4.6-150300.12.16.1
    * corosync-testagents-debuginfo-2.4.6-150300.12.16.1
    * libquorum5-2.4.6-150300.12.16.1
    * libvotequorum8-debuginfo-2.4.6-150300.12.16.1
    * libcfg6-2.4.6-150300.12.16.1
    * libcorosync_common4-debuginfo-2.4.6-150300.12.16.1
    * libcorosync_common4-2.4.6-150300.12.16.1
    * libquorum5-debuginfo-2.4.6-150300.12.16.1
  * SUSE Linux Enterprise High Availability Extension 15 SP5 (aarch64 ppc64le
    s390x x86_64)
    * corosync-qnetd-debuginfo-2.4.6-150300.12.16.1
    * libsam4-debuginfo-2.4.6-150300.12.16.1
    * libsam4-2.4.6-150300.12.16.1
    * libtotem_pg5-2.4.6-150300.12.16.1
    * libcpg4-2.4.6-150300.12.16.1
    * libvotequorum8-2.4.6-150300.12.16.1
    * libcfg6-debuginfo-2.4.6-150300.12.16.1
    * corosync-2.4.6-150300.12.16.1
    * corosync-debugsource-2.4.6-150300.12.16.1
    * corosync-qdevice-2.4.6-150300.12.16.1
    * corosync-debuginfo-2.4.6-150300.12.16.1
    * libcmap4-debuginfo-2.4.6-150300.12.16.1
    * corosync-testagents-2.4.6-150300.12.16.1
    * libtotem_pg5-debuginfo-2.4.6-150300.12.16.1
    * corosync-qdevice-debuginfo-2.4.6-150300.12.16.1
    * libcorosync-devel-2.4.6-150300.12.16.1
    * corosync-qnetd-2.4.6-150300.12.16.1
    * libcpg4-debuginfo-2.4.6-150300.12.16.1
    * libcmap4-2.4.6-150300.12.16.1
    * corosync-testagents-debuginfo-2.4.6-150300.12.16.1
    * libquorum5-2.4.6-150300.12.16.1
    * libvotequorum8-debuginfo-2.4.6-150300.12.16.1
    * libcfg6-2.4.6-150300.12.16.1
    * libcorosync_common4-debuginfo-2.4.6-150300.12.16.1
    * libcorosync_common4-2.4.6-150300.12.16.1
    * libquorum5-debuginfo-2.4.6-150300.12.16.1
  * SUSE Linux Enterprise High Availability Extension 15 SP6 (aarch64 ppc64le
    s390x x86_64)
    * corosync-qnetd-debuginfo-2.4.6-150300.12.16.1
    * libsam4-debuginfo-2.4.6-150300.12.16.1
    * libsam4-2.4.6-150300.12.16.1
    * libtotem_pg5-2.4.6-150300.12.16.1
    * libcpg4-2.4.6-150300.12.16.1
    * libvotequorum8-2.4.6-150300.12.16.1
    * libcfg6-debuginfo-2.4.6-150300.12.16.1
    * corosync-2.4.6-150300.12.16.1
    * corosync-debugsource-2.4.6-150300.12.16.1
    * corosync-qdevice-2.4.6-150300.12.16.1
    * corosync-debuginfo-2.4.6-150300.12.16.1
    * libcmap4-debuginfo-2.4.6-150300.12.16.1
    * corosync-testagents-2.4.6-150300.12.16.1
    * libtotem_pg5-debuginfo-2.4.6-150300.12.16.1
    * corosync-qdevice-debuginfo-2.4.6-150300.12.16.1
    * libcorosync-devel-2.4.6-150300.12.16.1
    * corosync-qnetd-2.4.6-150300.12.16.1
    * libcpg4-debuginfo-2.4.6-150300.12.16.1
    * libcmap4-2.4.6-150300.12.16.1
    * corosync-testagents-debuginfo-2.4.6-150300.12.16.1
    * libquorum5-2.4.6-150300.12.16.1
    * libvotequorum8-debuginfo-2.4.6-150300.12.16.1
    * libcfg6-2.4.6-150300.12.16.1
    * libcorosync_common4-debuginfo-2.4.6-150300.12.16.1
    * libcorosync_common4-2.4.6-150300.12.16.1
    * libquorum5-debuginfo-2.4.6-150300.12.16.1
  * SUSE Linux Enterprise High Availability Extension 15 SP7 (aarch64 ppc64le
    s390x x86_64)
    * corosync-qnetd-debuginfo-2.4.6-150300.12.16.1
    * libsam4-debuginfo-2.4.6-150300.12.16.1
    * libsam4-2.4.6-150300.12.16.1
    * libtotem_pg5-2.4.6-150300.12.16.1
    * libcpg4-2.4.6-150300.12.16.1
    * libvotequorum8-2.4.6-150300.12.16.1
    * libcfg6-debuginfo-2.4.6-150300.12.16.1
    * corosync-2.4.6-150300.12.16.1
    * corosync-debugsource-2.4.6-150300.12.16.1
    * corosync-qdevice-2.4.6-150300.12.16.1
    * corosync-debuginfo-2.4.6-150300.12.16.1
    * libcmap4-debuginfo-2.4.6-150300.12.16.1
    * corosync-testagents-2.4.6-150300.12.16.1
    * libtotem_pg5-debuginfo-2.4.6-150300.12.16.1
    * corosync-qdevice-debuginfo-2.4.6-150300.12.16.1
    * libcorosync-devel-2.4.6-150300.12.16.1
    * corosync-qnetd-2.4.6-150300.12.16.1
    * libcpg4-debuginfo-2.4.6-150300.12.16.1
    * libcmap4-2.4.6-150300.12.16.1
    * corosync-testagents-debuginfo-2.4.6-150300.12.16.1
    * libquorum5-2.4.6-150300.12.16.1
    * libvotequorum8-debuginfo-2.4.6-150300.12.16.1
    * libcfg6-2.4.6-150300.12.16.1
    * libcorosync_common4-debuginfo-2.4.6-150300.12.16.1
    * libcorosync_common4-2.4.6-150300.12.16.1
    * libquorum5-debuginfo-2.4.6-150300.12.16.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-35091.html
  * https://www.suse.com/security/cve/CVE-2026-35092.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1261299
  * https://bugzilla.suse.com/show_bug.cgi?id=1261300

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