RHSA-2026:94011: Important: bind9.16 security update

Published Nov 2, 2026
·
Updated

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: BIND 9: Denial of Service via crafted DNSSEC responses (CVE-2026-19662) bind: BIND: Denial of Service via unbounded processing of crafted DNS messages (CVE-2026-19630) bind: bind: Arbitrary code execution via GSS-TSIG UDP message replay (CVE-2026-94300) bind: bind: Denial of Service via assertion failure during redirect processing (CVE-2026-96888) bind: bind: Denial of service via assertion failure in RPZ query processing (CVE-2026-97313) 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.

Affected Software

47 affected componentsFixes available
redhat/bind9.16<9.16.23-0.22.el8_10.21
9.16.23-0.22.el8_10.21
redhat/bind9.16<9.16.23-0.22.el8_10.21
9.16.23-0.22.el8_10.21
redhat/bind9.16-chroot<9.16.23-0.22.el8_10.21
9.16.23-0.22.el8_10.21
redhat/bind9.16-debuginfo<9.16.23-0.22.el8_10.21
9.16.23-0.22.el8_10.21
redhat/bind9.16-debugsource<9.16.23-0.22.el8_10.21
9.16.23-0.22.el8_10.21
redhat/bind9.16-dnssec-utils<9.16.23-0.22.el8_10.21
9.16.23-0.22.el8_10.21
redhat/bind9.16-dnssec-utils-debuginfo<9.16.23-0.22.el8_10.21
9.16.23-0.22.el8_10.21
redhat/bind9.16-libs<9.16.23-0.22.el8_10.21
9.16.23-0.22.el8_10.21
redhat/bind9.16-libs-debuginfo<9.16.23-0.22.el8_10.21
9.16.23-0.22.el8_10.21
redhat/bind9.16-license<9.16.23-0.22.el8_10.21
9.16.23-0.22.el8_10.21
redhat/bind9.16-utils<9.16.23-0.22.el8_10.21
9.16.23-0.22.el8_10.21
redhat/bind9.16-utils-debuginfo<9.16.23-0.22.el8_10.21
9.16.23-0.22.el8_10.21
redhat/python3-bind9.16<9.16.23-0.22.el8_10.21
9.16.23-0.22.el8_10.21
redhat/bind9.16-chroot<9.16.23-0.22.el8_10.21
9.16.23-0.22.el8_10.21
redhat/bind9.16-debuginfo<9.16.23-0.22.el8_10.21
9.16.23-0.22.el8_10.21
redhat/bind9.16-debugsource<9.16.23-0.22.el8_10.21
9.16.23-0.22.el8_10.21
redhat/bind9.16-dnssec-utils<9.16.23-0.22.el8_10.21
9.16.23-0.22.el8_10.21
redhat/bind9.16-dnssec-utils-debuginfo<9.16.23-0.22.el8_10.21
9.16.23-0.22.el8_10.21
redhat/bind9.16-libs<9.16.23-0.22.el8_10.21
9.16.23-0.22.el8_10.21
redhat/bind9.16-libs-debuginfo<9.16.23-0.22.el8_10.21
9.16.23-0.22.el8_10.21
redhat/bind9.16-utils<9.16.23-0.22.el8_10.21
9.16.23-0.22.el8_10.21
redhat/bind9.16-utils-debuginfo<9.16.23-0.22.el8_10.21
9.16.23-0.22.el8_10.21
redhat/bind9.16<9.16.23-0.22.el8_10.21
9.16.23-0.22.el8_10.21
redhat/bind9.16-chroot<9.16.23-0.22.el8_10.21
9.16.23-0.22.el8_10.21
redhat/bind9.16-debuginfo<9.16.23-0.22.el8_10.21
9.16.23-0.22.el8_10.21
redhat/bind9.16-debugsource<9.16.23-0.22.el8_10.21
9.16.23-0.22.el8_10.21
redhat/bind9.16-dnssec-utils<9.16.23-0.22.el8_10.21
9.16.23-0.22.el8_10.21
redhat/bind9.16-dnssec-utils-debuginfo<9.16.23-0.22.el8_10.21
9.16.23-0.22.el8_10.21
redhat/bind9.16-libs<9.16.23-0.22.el8_10.21
9.16.23-0.22.el8_10.21
redhat/bind9.16-libs-debuginfo<9.16.23-0.22.el8_10.21
9.16.23-0.22.el8_10.21
redhat/bind9.16-utils<9.16.23-0.22.el8_10.21
9.16.23-0.22.el8_10.21
redhat/bind9.16-utils-debuginfo<9.16.23-0.22.el8_10.21
9.16.23-0.22.el8_10.21
redhat/bind9.16<9.16.23-0.22.el8_10.21.aa
9.16.23-0.22.el8_10.21.aa
redhat/bind9.16-chroot<9.16.23-0.22.el8_10.21.aa
9.16.23-0.22.el8_10.21.aa
redhat/bind9.16-debuginfo<9.16.23-0.22.el8_10.21.aa
9.16.23-0.22.el8_10.21.aa
redhat/bind9.16-debugsource<9.16.23-0.22.el8_10.21.aa
9.16.23-0.22.el8_10.21.aa
redhat/bind9.16-dnssec-utils<9.16.23-0.22.el8_10.21.aa
9.16.23-0.22.el8_10.21.aa
redhat/bind9.16-dnssec-utils-debuginfo<9.16.23-0.22.el8_10.21.aa
9.16.23-0.22.el8_10.21.aa
redhat/bind9.16-libs<9.16.23-0.22.el8_10.21.aa
9.16.23-0.22.el8_10.21.aa
redhat/bind9.16-libs-debuginfo<9.16.23-0.22.el8_10.21.aa
9.16.23-0.22.el8_10.21.aa
redhat/bind9.16-utils<9.16.23-0.22.el8_10.21.aa
9.16.23-0.22.el8_10.21.aa
redhat/bind9.16-utils-debuginfo<9.16.23-0.22.el8_10.21.aa
9.16.23-0.22.el8_10.21.aa
redhat/bind9.16-devel<9.16.23-0.22.el8_10.21
9.16.23-0.22.el8_10.21
redhat/bind9.16-devel<9.16.23-0.22.el8_10.21
9.16.23-0.22.el8_10.21
redhat/bind9.16-doc<9.16.23-0.22.el8_10.21
9.16.23-0.22.el8_10.21
redhat/bind9.16-devel<9.16.23-0.22.el8_10.21
9.16.23-0.22.el8_10.21
redhat/bind9.16-devel<9.16.23-0.22.el8_10.21.aa
9.16.23-0.22.el8_10.21.aa

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade redhat/bind9.16 to a version that resolves this vulnerability.

    Fixed in 9.16.23-0.22.el8_10.21
  2. Upgrade

    Upgrade redhat/bind9.16-chroot to a version that resolves this vulnerability.

    Fixed in 9.16.23-0.22.el8_10.21
  3. Upgrade

    Upgrade redhat/bind9.16-debuginfo to a version that resolves this vulnerability.

    Fixed in 9.16.23-0.22.el8_10.21
  4. Upgrade

    Upgrade redhat/bind9.16-debugsource to a version that resolves this vulnerability.

    Fixed in 9.16.23-0.22.el8_10.21
  5. Upgrade

    Upgrade redhat/bind9.16-dnssec-utils to a version that resolves this vulnerability.

    Fixed in 9.16.23-0.22.el8_10.21
  6. Upgrade

    Upgrade redhat/bind9.16-dnssec-utils-debuginfo to a version that resolves this vulnerability.

    Fixed in 9.16.23-0.22.el8_10.21
  7. Upgrade

    Upgrade redhat/bind9.16-libs to a version that resolves this vulnerability.

    Fixed in 9.16.23-0.22.el8_10.21
  8. Upgrade

    Upgrade redhat/bind9.16-libs-debuginfo to a version that resolves this vulnerability.

    Fixed in 9.16.23-0.22.el8_10.21
  9. Upgrade

    Upgrade redhat/bind9.16-license to a version that resolves this vulnerability.

    Fixed in 9.16.23-0.22.el8_10.21
  10. Upgrade

    Upgrade redhat/bind9.16-utils to a version that resolves this vulnerability.

    Fixed in 9.16.23-0.22.el8_10.21
  11. Upgrade

    Upgrade redhat/bind9.16-utils-debuginfo to a version that resolves this vulnerability.

    Fixed in 9.16.23-0.22.el8_10.21
  12. Upgrade

    Upgrade redhat/python3-bind9.16 to a version that resolves this vulnerability.

    Fixed in 9.16.23-0.22.el8_10.21
  13. Upgrade

    Upgrade redhat/bind9.16 to a version that resolves this vulnerability.

    Fixed in 9.16.23-0.22.el8_10.21.aa
  14. Upgrade

    Upgrade redhat/bind9.16-chroot to a version that resolves this vulnerability.

    Fixed in 9.16.23-0.22.el8_10.21.aa
  15. Upgrade

    Upgrade redhat/bind9.16-debuginfo to a version that resolves this vulnerability.

    Fixed in 9.16.23-0.22.el8_10.21.aa
  16. Upgrade

    Upgrade redhat/bind9.16-debugsource to a version that resolves this vulnerability.

    Fixed in 9.16.23-0.22.el8_10.21.aa
  17. Upgrade

    Upgrade redhat/bind9.16-dnssec-utils to a version that resolves this vulnerability.

    Fixed in 9.16.23-0.22.el8_10.21.aa
  18. Upgrade

    Upgrade redhat/bind9.16-dnssec-utils-debuginfo to a version that resolves this vulnerability.

    Fixed in 9.16.23-0.22.el8_10.21.aa
  19. Upgrade

    Upgrade redhat/bind9.16-libs to a version that resolves this vulnerability.

    Fixed in 9.16.23-0.22.el8_10.21.aa
  20. Upgrade

    Upgrade redhat/bind9.16-libs-debuginfo to a version that resolves this vulnerability.

    Fixed in 9.16.23-0.22.el8_10.21.aa
  21. Upgrade

    Upgrade redhat/bind9.16-utils to a version that resolves this vulnerability.

    Fixed in 9.16.23-0.22.el8_10.21.aa
  22. Upgrade

    Upgrade redhat/bind9.16-utils-debuginfo to a version that resolves this vulnerability.

    Fixed in 9.16.23-0.22.el8_10.21.aa
  23. Upgrade

    Upgrade redhat/bind9.16-devel to a version that resolves this vulnerability.

    Fixed in 9.16.23-0.22.el8_10.21
  24. Upgrade

    Upgrade redhat/bind9.16-doc to a version that resolves this vulnerability.

    Fixed in 9.16.23-0.22.el8_10.21
  25. Upgrade

    Upgrade redhat/bind9.16-devel to a version that resolves this vulnerability.

    Fixed in 9.16.23-0.22.el8_10.21.aa

Event History

Nov 2, 2026
Advisory Published
via Red Hat·12:00 AM
Data Sourced
via Red Hat·12:00 AM
RemedyDescriptionAffected Software

Frequently Asked Questions

1

Which issue has the most severe stated impact?

CVE-2026-94300 is described as allowing arbitrary code execution through replay of GSS-TSIG UDP messages. The other listed issues are described as denial-of-service vulnerabilities.

2

Which BIND features or message types are specifically implicated?

The advisory identifies crafted DNSSEC responses in CVE-2026-19662, crafted DNS messages in CVE-2026-19630, GSS-TSIG UDP message replay in CVE-2026-94300, redirect processing in CVE-2026-96888, and RPZ query processing in CVE-2026-97313.

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