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ALSA-2026:54509 — Important: bind9.16 security update

Affected: AlmaLinux:8: bind9.16, AlmaLinux:8: bind9.16-chroot, AlmaLinux:8: bind9.16-devel, AlmaLinux:8: bind9.16-dnssec-utils, AlmaLinux:8: bind9.16-doc, AlmaLinux:8: bind9.16-libs, AlmaLinux:8: bind9.16-license, AlmaLinux:8: bind9.16-utils, AlmaLinux:8: python3-bind9.16

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.

BELL-CVE-2026-11331

Affected: Alpaquita:23: bind, Alpaquita:25: bind, Alpaquita:stream: bind

certfr-2026-avi-1206 — De multiples vulnérabilités ont été découvertes dans les produits IBM. Certaines d'entre elles permettent à un attaquan…

certfr-2026-avi-1206

EUVD-2026-339642

fkie_cve-2026-11331

An attacker who knows (or guesses) that a resolver uses RPZ with wildcard CNAME policies can craft query names long enough to trigger a NAMETOOLONG error condition during RPZ processing. This is not handled correctly and may lead to defeating the RPZ rule. It also may lead to an unexpected exit of the BIND 9 software. This issue affects BIND 9 versions 9.16.0 through 9.18.50, 9.20.0 through 9.20.24, 9.21.0 through 9.21.23, 9.16.8-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.24-S1.

GHSA-8p39-mp4q-99c8

msrc_CVE-2026-11331 — Potential wildcard CNAME RPZ policy bypass

msrc_CVE-2026-11331

OESA-2026-3289 — bind security update

Affected: openEuler:24.03-LTS-SP3: bind

BIND (Berkeley Internet Name Domain) is an implementation of the DNS (Domain Name System) protocols. BIND includes a DNS server (named), which resolves host names to IP addresses; a resolver library (routines for applications to use when interfacing with DNS); and tools for verifying that the DNS server is operating properly. Security Fix(es):

BIND may accept incorrect child-zone NSEC3 records as valid, which could allow an attacker to forge authenticated NXDOMAIN responses. This issue affects BIND 9 versions 9.18.0 through 9.18.50, 9.20.0 through 9.20.24, 9.21.0 through 9.21.23, 9.11.3-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.24-S1.(CVE-2026-10723)

If BIND encounters a particular invalid data structure in a DNS record, it will accept the invalid data, and may subsequently abort and exit.

BIND will first need to store a DNS record for a key (KEY, DNSKEY, etc.). That key must specify a PRIVATEDNS algorithm (253), and in the algorithm identifier, improperly give a length longer than the actual identifier data. The invalid identifier will be stored. If BIND later needs to render that record to text, it will use the invalid length during processing, leading to a consistency check failing. This issue affects BIND 9 versions 9.18.0 through 9.18.50, 9.20.0 through 9.20.24, 9.21.0 through 9.21.23, 9.18.11-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.24-S1.(CVE-2026-10822)

An attacker who knows (or guesses) that a resolver uses RPZ with wildcard CNAME policies ca…

openSUSE-SU-2026:11375-1 — bind-9.20.26-1.1 on GA media

bind-9.20.26-1.1 on GA media

RHSA-2026:54071 — Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update

bind: bind9: Incorrect acceptance of NSEC3 records bind: bind9: Key Record using PRIVATEDNS algorithm may lead to exit bind9: bind: Potential wildcard CNAME RPZ policy bypass bind: bind9: Potential memory usage beyond configured limits bind: bind9: Cache poisoning via label count discrepancy, RRSIG, wildcards bind: bind9: Record ordering based unexpected exit with CNAME or DNAME bind: bind9: Unexpected exit with NSEC and NSEC3 both present bind: bind9: DNSSEC Validation Bypass via Out-of-Zone NSEC Next Field

RLSA-2026:54509 — Important: bind9.16 security update

Affected: Rocky Linux:8: bind9.16

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.

SUSE-SU-2026:3452-1 — Security update for bind

Security update for bind

UBUNTU-CVE-2026-11331

Affected: Ubuntu:Pro:14.04:LTS: bind9, Ubuntu:Pro:16.04:LTS: bind9, Ubuntu:Pro:18.04:LTS: bind9, Ubuntu:18.04:LTS: isc-dhcp, Ubuntu:Pro:20.04:LTS: bind9, Ubuntu:20.04:LTS: bind9-libs, Ubuntu:22.04:LTS: bind9, Ubuntu:22.04:LTS: bind9-libs, Ubuntu:24.04:LTS: bind9, Ubuntu:24.04:LTS: isc-dhcp and 2 more

WID-SEC-W-2026-2484 — Internet Systems Consortium BIND: Mehrere Schwachstellen

Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Internet Systems Consortium BIND ausnutzen, um Sicherheitsmaßnahmen zu umgehen, Daten zu manipulieren, vertrauliche Informationen offenzulegen oder einen Denial-of-Service-Zustand auszulösen.