SUSE alert openSUSE-SU-2026:21489-1 (bind)

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openSUSE-SU-2026:21489-1: important: Security update for bind
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Fri, 31 Jul 2026 17:53:08 +0200
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<20260731155308.B18CAFDC8@maintenance.suse.de>
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Article
openSUSE security update: security update for bind
-------------------------------------------------------------

Announcement ID: openSUSE-SU-2026:21489-1
Rating: important
References:

  * bsc#1271982
  * bsc#1271983
  * bsc#1271984
  * bsc#1271985
  * bsc#1271986
  * bsc#1271987
  * bsc#1271988
  * bsc#1271989
  * bsc#1271990



Cross-References:

  * CVE-2026-10723
  * CVE-2026-10822
  * CVE-2026-11331
  * CVE-2026-11605
  * CVE-2026-11622
  * CVE-2026-11721
  * CVE-2026-12617
  * CVE-2026-13204
  * CVE-2026-13321



CVSS scores:

  * 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 ( 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-2026-10822 ( SUSE ): 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
  * CVE-2026-10822 ( SUSE ): 6.9 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/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 ( 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-2026-11605 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-11605 ( 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 ( 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-2026-11721 ( 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 ( 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-2026-12617 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-12617 ( 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 ( 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-2026-13321 ( 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 ( 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

Affected Products:

         openSUSE Leap 16.0

-------------------------------------------------------------

An update that solves 9 vulnerabilities and has 9 bug fixes can now be installed.

Description:

This update for bind fixes the following issues

- Upgrade to release 9.20.26
- CVE-2026-10723: Incorrect acceptance of NSEC3 records (bsc#1271982).
- CVE-2026-10822: Key Record using PRIVATEDNS algorithm may lead to unexpected exit (bsc#1271983).
- CVE-2026-11331: Potential wildcard CNAME RPZ policy bypass (bsc#1271984).
- CVE-2026-11605: Unnecessary validation of DNSSEC signed records (bsc#1271985).
- 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-2026-12617: Record ordering based unexpected exit with CNAME or DNAME (bsc#1271988).
- 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 openSUSE security 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 16.0

   zypper in -t patch openSUSE-Leap-16.0-1415=1

Package List:

- openSUSE Leap 16.0:

  bind-9.20.26-160000.1.1
  bind-doc-9.20.26-160000.1.1
  bind-modules-bdbhpt-9.20.26-160000.1.1
  bind-modules-generic-9.20.26-160000.1.1
  bind-modules-ldap-9.20.26-160000.1.1
  bind-modules-mysql-9.20.26-160000.1.1
  bind-modules-perl-9.20.26-160000.1.1
  bind-modules-sqlite3-9.20.26-160000.1.1
  bind-utils-9.20.26-160000.1.1

References:

  * https://www.suse.com/security/cve/CVE-2026-10723.html
  * https://www.suse.com/security/cve/CVE-2026-10822.html
  * https://www.suse.com/security/cve/CVE-2026-11331.html
  * https://www.suse.com/security/cve/CVE-2026-11605.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-2026-12617.html
  * https://www.suse.com/security/cve/CVE-2026-13204.html
  * https://www.suse.com/security/cve/CVE-2026-13321.html