SUSE-SU-2026:3476-1: important: Security update for bind

SLE-UPDATES null at suse.de
Tue Aug 4 08:31:38 UTC 2026 

# Security update for bind

Announcement ID: SUSE-SU-2026:3476-1  
Release Date: 2026-08-03T16:58:19Z  
Rating: important  
References:

  * bsc#1271982
  * bsc#1271984
  * bsc#1271986
  * bsc#1271987
  * bsc#1271989
  * bsc#1271990

  
Cross-References:

  * CVE-2026-10723
  * CVE-2026-11331
  * CVE-2026-11622
  * CVE-2026-11721
  * CVE-2026-13204
  * CVE-2026-13321

  
CVSS scores:

  * CVE-2026-10723 ( SUSE ):  8.9
    CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N
  * CVE-2026-10723 ( SUSE ):  6.8 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N
  * CVE-2026-10723 ( NVD ):  6.8 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N
  * CVE-2026-11331 ( SUSE ):  8.7
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-11331 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
  * CVE-2026-11331 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
  * CVE-2026-11622 ( 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-2026-11622 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-11622 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-11721 ( SUSE ):  8.7
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
  * CVE-2026-11721 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
  * CVE-2026-11721 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
  * CVE-2026-13204 ( 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-2026-13204 ( SUSE ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-13204 ( NVD ):  7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-13321 ( SUSE ):  9.2
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:H/SA:N
  * CVE-2026-13321 ( SUSE ):  8.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N
  * CVE-2026-13321 ( NVD ):  8.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N

  
Affected Products:

  * openSUSE Leap 15.4
  * SUSE Linux Enterprise High Performance Computing 15 SP4
  * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4
  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP4
  * SUSE Linux Enterprise Server 15 SP4
  * SUSE Linux Enterprise Server 15 SP4 LTSS
  * SUSE Linux Enterprise Server for SAP Applications 15 SP4

  
  
An update that solves six vulnerabilities can now be installed.

## Description:

This update for bind fixes the following issues

  * CVE-2026-10723: incorrect acceptance of NSEC3 records (bsc#1271982).
  * CVE-2026-11331: potential wildcard CNAME RPZ policy bypass (bsc#1271984).
  * CVE-2026-11622: potential memory usage beyond configured limits
    (bsc#1271986).
  * CVE-2026-11721: cache poisoning possible with label count discrepancy,
    RRSIG, and wildcards (bsc#1271987).
  * CVE-2026-13204: unexpected exit in certain situations with NSEC and NSEC3
    both present (bsc#1271989).
  * CVE-2026-13321: DNSSEC validation bypass via out-of-zone NSEC Next field
    (bsc#1271990).

## 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 15 SP4 LTSS  
    zypper in -t patch SUSE-SLE-Product-SLES-15-SP4-LTSS-2026-3476=1

  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP4  
    zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-LTSS-2026-3476=1

  * SUSE Linux Enterprise Server for SAP Applications 15 SP4  
    zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP4-2026-3476=1

  * openSUSE Leap 15.4  
    zypper in -t patch SUSE-2026-3476=1

  * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4  
    zypper in -t patch SUSE-SLE-Product-HPC-15-SP4-ESPOS-2026-3476=1

## Package List:

  * openSUSE Leap 15.4 (aarch64 i586 ppc64le s390x x86_64)
    * bind-utils-debuginfo-9.16.50-150400.5.65.1
    * bind-utils-9.16.50-150400.5.65.1
    * bind-debugsource-9.16.50-150400.5.65.1
    * bind-debuginfo-9.16.50-150400.5.65.1
    * bind-9.16.50-150400.5.65.1
  * openSUSE Leap 15.4 (noarch)
    * python3-bind-9.16.50-150400.5.65.1
    * bind-doc-9.16.50-150400.5.65.1
  * SUSE Linux Enterprise Server 15 SP4 LTSS (aarch64 ppc64le s390x x86_64)
    * bind-utils-debuginfo-9.16.50-150400.5.65.1
    * bind-utils-9.16.50-150400.5.65.1
    * bind-debugsource-9.16.50-150400.5.65.1
    * bind-debuginfo-9.16.50-150400.5.65.1
    * bind-9.16.50-150400.5.65.1
  * SUSE Linux Enterprise Server 15 SP4 LTSS (noarch)
    * python3-bind-9.16.50-150400.5.65.1
    * bind-doc-9.16.50-150400.5.65.1
  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 (aarch64
    x86_64)
    * bind-utils-debuginfo-9.16.50-150400.5.65.1
    * bind-utils-9.16.50-150400.5.65.1
    * bind-debugsource-9.16.50-150400.5.65.1
    * bind-debuginfo-9.16.50-150400.5.65.1
    * bind-9.16.50-150400.5.65.1
  * SUSE Linux Enterprise High Performance Computing LTSS 15 SP4 (noarch)
    * python3-bind-9.16.50-150400.5.65.1
    * bind-doc-9.16.50-150400.5.65.1
  * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 (aarch64
    x86_64)
    * bind-utils-debuginfo-9.16.50-150400.5.65.1
    * bind-utils-9.16.50-150400.5.65.1
    * bind-debugsource-9.16.50-150400.5.65.1
    * bind-debuginfo-9.16.50-150400.5.65.1
    * bind-9.16.50-150400.5.65.1
  * SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4 (noarch)
    * python3-bind-9.16.50-150400.5.65.1
    * bind-doc-9.16.50-150400.5.65.1
  * SUSE Linux Enterprise Server for SAP Applications 15 SP4 (ppc64le x86_64)
    * bind-utils-debuginfo-9.16.50-150400.5.65.1
    * bind-utils-9.16.50-150400.5.65.1
    * bind-debuginfo-9.16.50-150400.5.65.1
    * bind-debugsource-9.16.50-150400.5.65.1
    * bind-9.16.50-150400.5.65.1
  * SUSE Linux Enterprise Server for SAP Applications 15 SP4 (noarch)
    * python3-bind-9.16.50-150400.5.65.1
    * bind-doc-9.16.50-150400.5.65.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-10723.html
  * https://www.suse.com/security/cve/CVE-2026-11331.html
  * https://www.suse.com/security/cve/CVE-2026-11622.html
  * https://www.suse.com/security/cve/CVE-2026-11721.html
  * https://www.suse.com/security/cve/CVE-2026-13204.html
  * https://www.suse.com/security/cve/CVE-2026-13321.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1271982
  * https://bugzilla.suse.com/show_bug.cgi?id=1271984
  * https://bugzilla.suse.com/show_bug.cgi?id=1271986
  * https://bugzilla.suse.com/show_bug.cgi?id=1271987
  * https://bugzilla.suse.com/show_bug.cgi?id=1271989
  * https://bugzilla.suse.com/show_bug.cgi?id=1271990

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