RHSA-2026:54510: Important: bind security update

Published Aug 13, 2026
·
Updated

Important: bind security update

Other sources

The Berkeley Internet Name Domain (BIND) is an implementation of the Domain Name System (DNS) protocols. BIND includes a DNS server (named); a resolver library (routines for applications to use when interfacing with DNS); and tools for verifying that the DNS server is operating correctly.Security Fix(es): bind9: bind: Potential wildcard CNAME RPZ policy bypass (CVE-2026-11331) bind: bind9: DNSSEC Validation Bypass via Out-of-Zone NSEC Next Field (CVE-2026-13321) bind: bind9: Potential memory usage beyond configured limits (CVE-2026-11622) bind: bind9: Cache poisoning via label count discrepancy, RRSIG, wildcards (CVE-2026-11721) bind: bind9: Unexpected exit with NSEC and NSEC3 both present (CVE-2026-13204) bind: bind9: Incorrect acceptance of NSEC3 records (CVE-2026-10723) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

— Red Hat

Affected Software

72 affected componentsFixes available
Red Hat Red Hat CodeReady Linux Builder for Power, little endian - Extended Update Support
Red Hat Red Hat CodeReady Linux Builder for Power, little endian
Red Hat Red Hat Enterprise Linux for IBM z Systems
Red Hat Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Red Hat Red Hat CodeReady Linux Builder for ARM 64
Red Hat Red Hat Enterprise Linux for Power, little endian
Red Hat Red Hat Enterprise Linux for x86_64 - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for ARM 64
Red Hat Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle
Red Hat Red Hat CodeReady Linux Builder for x86_64 - Extended Update Support
Red Hat Red Hat Enterprise Linux for x86_64
Red Hat Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions
Red Hat Red Hat Enterprise Linux for IBM z Systems - 4 years of updates
Red Hat Red Hat CodeReady Linux Builder for ARM 64 - Extended Update Support
Red Hat Red Hat Enterprise Linux for ARM 64 - 4 years of updates
Red Hat Red Hat CodeReady Linux Builder for IBM z Systems - Extended Update Support
Red Hat Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for x86_64 - Extended Update Support
Red Hat Red Hat CodeReady Linux Builder for x86_64
Red Hat Red Hat CodeReady Linux Builder for IBM z Systems
Red Hat Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
redhat/bind<9.16.23-40.el9_8.8
9.16.23-40.el9_8.8
redhat/bind<9.16.23-40.el9_8.8
9.16.23-40.el9_8.8
redhat/bind-chroot<9.16.23-40.el9_8.8
9.16.23-40.el9_8.8
redhat/bind-debuginfo<9.16.23-40.el9_8.8
9.16.23-40.el9_8.8
redhat/bind-debugsource<9.16.23-40.el9_8.8
9.16.23-40.el9_8.8
redhat/bind-dnssec-doc<9.16.23-40.el9_8.8
9.16.23-40.el9_8.8
redhat/bind-dnssec-utils<9.16.23-40.el9_8.8
9.16.23-40.el9_8.8
redhat/bind-dnssec-utils-debuginfo<9.16.23-40.el9_8.8
9.16.23-40.el9_8.8
redhat/bind-libs<9.16.23-40.el9_8.8
9.16.23-40.el9_8.8
redhat/bind-libs-debuginfo<9.16.23-40.el9_8.8
9.16.23-40.el9_8.8
redhat/bind-license<9.16.23-40.el9_8.8
9.16.23-40.el9_8.8
redhat/bind-utils<9.16.23-40.el9_8.8
9.16.23-40.el9_8.8
redhat/bind-utils-debuginfo<9.16.23-40.el9_8.8
9.16.23-40.el9_8.8
redhat/python3-bind<9.16.23-40.el9_8.8
9.16.23-40.el9_8.8
redhat/bind-chroot<9.16.23-40.el9_8.8
9.16.23-40.el9_8.8
redhat/bind-debuginfo<9.16.23-40.el9_8.8
9.16.23-40.el9_8.8
redhat/bind-debugsource<9.16.23-40.el9_8.8
9.16.23-40.el9_8.8
redhat/bind-dnssec-utils<9.16.23-40.el9_8.8
9.16.23-40.el9_8.8
redhat/bind-dnssec-utils-debuginfo<9.16.23-40.el9_8.8
9.16.23-40.el9_8.8
redhat/bind-libs<9.16.23-40.el9_8.8
9.16.23-40.el9_8.8
redhat/bind-libs-debuginfo<9.16.23-40.el9_8.8
9.16.23-40.el9_8.8
redhat/bind-utils<9.16.23-40.el9_8.8
9.16.23-40.el9_8.8
redhat/bind-utils-debuginfo<9.16.23-40.el9_8.8
9.16.23-40.el9_8.8
redhat/bind<9.16.23-40.el9_8.8
9.16.23-40.el9_8.8
redhat/bind-chroot<9.16.23-40.el9_8.8
9.16.23-40.el9_8.8
redhat/bind-debuginfo<9.16.23-40.el9_8.8
9.16.23-40.el9_8.8
redhat/bind-debugsource<9.16.23-40.el9_8.8
9.16.23-40.el9_8.8
redhat/bind-dnssec-utils<9.16.23-40.el9_8.8
9.16.23-40.el9_8.8
redhat/bind-dnssec-utils-debuginfo<9.16.23-40.el9_8.8
9.16.23-40.el9_8.8
redhat/bind-libs<9.16.23-40.el9_8.8
9.16.23-40.el9_8.8
redhat/bind-libs-debuginfo<9.16.23-40.el9_8.8
9.16.23-40.el9_8.8
redhat/bind-utils<9.16.23-40.el9_8.8
9.16.23-40.el9_8.8
redhat/bind-utils-debuginfo<9.16.23-40.el9_8.8
9.16.23-40.el9_8.8
redhat/bind<9.16.23-40.el9_8.8.aa
9.16.23-40.el9_8.8.aa
redhat/bind-chroot<9.16.23-40.el9_8.8.aa
9.16.23-40.el9_8.8.aa
redhat/bind-debuginfo<9.16.23-40.el9_8.8.aa
9.16.23-40.el9_8.8.aa
redhat/bind-debugsource<9.16.23-40.el9_8.8.aa
9.16.23-40.el9_8.8.aa
redhat/bind-dnssec-utils<9.16.23-40.el9_8.8.aa
9.16.23-40.el9_8.8.aa
redhat/bind-dnssec-utils-debuginfo<9.16.23-40.el9_8.8.aa
9.16.23-40.el9_8.8.aa
redhat/bind-libs<9.16.23-40.el9_8.8.aa
9.16.23-40.el9_8.8.aa
redhat/bind-libs-debuginfo<9.16.23-40.el9_8.8.aa
9.16.23-40.el9_8.8.aa
redhat/bind-utils<9.16.23-40.el9_8.8.aa
9.16.23-40.el9_8.8.aa
redhat/bind-utils-debuginfo<9.16.23-40.el9_8.8.aa
9.16.23-40.el9_8.8.aa
redhat/bind-devel<9.16.23-40.el9_8.8
9.16.23-40.el9_8.8
redhat/bind-devel<9.16.23-40.el9_8.8
9.16.23-40.el9_8.8
redhat/bind-doc<9.16.23-40.el9_8.8
9.16.23-40.el9_8.8
redhat/bind-devel<9.16.23-40.el9_8.8
9.16.23-40.el9_8.8
redhat/bind-devel<9.16.23-40.el9_8.8.aa
9.16.23-40.el9_8.8.aa

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade redhat/bind to a version that resolves this vulnerability.

    Fixed in 9.16.23-40.el9_8.8
  2. Upgrade

    Upgrade redhat/bind-chroot to a version that resolves this vulnerability.

    Fixed in 9.16.23-40.el9_8.8
  3. Upgrade

    Upgrade redhat/bind-debuginfo to a version that resolves this vulnerability.

    Fixed in 9.16.23-40.el9_8.8
  4. Upgrade

    Upgrade redhat/bind-debugsource to a version that resolves this vulnerability.

    Fixed in 9.16.23-40.el9_8.8
  5. Upgrade

    Upgrade redhat/bind-dnssec-doc to a version that resolves this vulnerability.

    Fixed in 9.16.23-40.el9_8.8
  6. Upgrade

    Upgrade redhat/bind-dnssec-utils to a version that resolves this vulnerability.

    Fixed in 9.16.23-40.el9_8.8
  7. Upgrade

    Upgrade redhat/bind-dnssec-utils-debuginfo to a version that resolves this vulnerability.

    Fixed in 9.16.23-40.el9_8.8
  8. Upgrade

    Upgrade redhat/bind-libs to a version that resolves this vulnerability.

    Fixed in 9.16.23-40.el9_8.8
  9. Upgrade

    Upgrade redhat/bind-libs-debuginfo to a version that resolves this vulnerability.

    Fixed in 9.16.23-40.el9_8.8
  10. Upgrade

    Upgrade redhat/bind-license to a version that resolves this vulnerability.

    Fixed in 9.16.23-40.el9_8.8
  11. Upgrade

    Upgrade redhat/bind-utils to a version that resolves this vulnerability.

    Fixed in 9.16.23-40.el9_8.8
  12. Upgrade

    Upgrade redhat/bind-utils-debuginfo to a version that resolves this vulnerability.

    Fixed in 9.16.23-40.el9_8.8
  13. Upgrade

    Upgrade redhat/python3-bind to a version that resolves this vulnerability.

    Fixed in 9.16.23-40.el9_8.8
  14. Upgrade

    Upgrade redhat/bind to a version that resolves this vulnerability.

    Fixed in 9.16.23-40.el9_8.8.aa
  15. Upgrade

    Upgrade redhat/bind-chroot to a version that resolves this vulnerability.

    Fixed in 9.16.23-40.el9_8.8.aa
  16. Upgrade

    Upgrade redhat/bind-debuginfo to a version that resolves this vulnerability.

    Fixed in 9.16.23-40.el9_8.8.aa
  17. Upgrade

    Upgrade redhat/bind-debugsource to a version that resolves this vulnerability.

    Fixed in 9.16.23-40.el9_8.8.aa
  18. Upgrade

    Upgrade redhat/bind-dnssec-utils to a version that resolves this vulnerability.

    Fixed in 9.16.23-40.el9_8.8.aa
  19. Upgrade

    Upgrade redhat/bind-dnssec-utils-debuginfo to a version that resolves this vulnerability.

    Fixed in 9.16.23-40.el9_8.8.aa
  20. Upgrade

    Upgrade redhat/bind-libs to a version that resolves this vulnerability.

    Fixed in 9.16.23-40.el9_8.8.aa
  21. Upgrade

    Upgrade redhat/bind-libs-debuginfo to a version that resolves this vulnerability.

    Fixed in 9.16.23-40.el9_8.8.aa
  22. Upgrade

    Upgrade redhat/bind-utils to a version that resolves this vulnerability.

    Fixed in 9.16.23-40.el9_8.8.aa
  23. Upgrade

    Upgrade redhat/bind-utils-debuginfo to a version that resolves this vulnerability.

    Fixed in 9.16.23-40.el9_8.8.aa
  24. Upgrade

    Upgrade redhat/bind-devel to a version that resolves this vulnerability.

    Fixed in 9.16.23-40.el9_8.8
  25. Upgrade

    Upgrade redhat/bind-doc to a version that resolves this vulnerability.

    Fixed in 9.16.23-40.el9_8.8
  26. Upgrade

    Upgrade redhat/bind-devel to a version that resolves this vulnerability.

    Fixed in 9.16.23-40.el9_8.8.aa

Event History

Aug 13, 2026
Advisory Published
via Red Hat·12:00 AM
Data Sourced
via Red Hat·12:00 AM
RemedyDescriptionAffected Software
Advisory Published
via Red Hat·09:10 AM
Data Sourced
via Red Hat·09:10 AM
Severity
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Frequently Asked Questions

1

What is the severity of RHSA-2026:54510?

The severity of RHSA-2026:54510 is classified as high with a score of 7.

2

How do I fix RHSA-2026:54510?

To fix RHSA-2026:54510, you should update all affected BIND packages to the latest version released by Red Hat.

3

What software is affected by RHSA-2026:54510?

The affected software includes redhat/bind, redhat/bind-chroot, and redhat/bind-libs, among others.

4

What vulnerabilities does RHSA-2026:54510 address?

RHSA-2026:54510 addresses security vulnerabilities in the Berkeley Internet Name Domain (BIND) implementation.

5

When was RHSA-2026:54510 published?

RHSA-2026:54510 was published on August 13, 2026.

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RHSA-2026:54510 - Important: bind security update - SecAlerts