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ALSA-2026:23360 — 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):

* bind: BIND 9 server memory exhaustion during GSS-API TKEY negotiation (CVE-2026-3039) * bind: BIND: Denial of Service via specially crafted DNS messages (CVE-2026-5946)

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.

bdu:2026-08887

BELL-CVE-2026-5946

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

certfr-2026-avi-0626 — De multiples vulnérabilités ont été découvertes dans ISC BIND. Elles permettent à un attaquant de provoquer un déni de…

certfr-2026-avi-0626

EUVD-2026-370209

fkie_cve-2026-5946

Multiple flaws have been identified in `named` related to the handling of DNS messages whose CLASS is not Internet (`IN`) — for example, `CHAOS` or `HESIOD`, or DNS messages that specify meta-classes (`ANY` or `NONE`) in the question section. Specially crafted requests reaching the affected code paths — recursion, dynamic updates (`UPDATE`), zone change notifications (`NOTIFY`), or processing of `IN`-specific record types in non-`IN` data — can cause assertion failures in `named`. This issue affects BIND 9 versions 9.11.0 through 9.16.50, 9.18.0 through 9.18.48, 9.20.0 through 9.20.22, 9.21.0 through 9.21.21, 9.11.3-S1 through 9.16.50-S1, 9.18.11-S1 through 9.18.48-S1, and 9.20.9-S1 through 9.20.22-S1.

GHSA-cqgq-ff3f-rj7r

msrc_CVE-2026-5946 — Invalid handling of CLASS != IN

msrc_CVE-2026-5946

OESA-2026-2600 — 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 servers that are configured to use TKEY-based authentication via GSS-API tokens are vulnerable to excessive memory consumption when receiving and processing maliciously-constructed packets. Typically these servers will be found in Active Directory integrated DNS deployments and/or Kerberos-secured DNS environments. This issue affects BIND 9 versions 9.0.0 through 9.16.50, 9.18.0 through 9.18.48, 9.20.0 through 9.20.22, 9.21.0 through 9.21.21, 9.9.3-S1 through 9.16.50-S1, 9.18.11-S1 through 9.18.48-S1, and 9.20.9-S1 through 9.20.22-S1.(CVE-2026-3039)

BIND resolvers are vulnerable to an amplified resource consumption/exhaustion attack. If a victim resolver makes a query to a specially crafted zone, the resolver will consume disproportionate resources. This issue affects BIND 9 versions 9.11.0 through 9.16.50, 9.18.0 through 9.18.48, 9.20.0 through 9.20.22, 9.21.0 through 9.21.21, 9.11.3-S1 through 9.16.50-S1, 9.18.11-S1 through 9.18.48-S1, and 9.20.9-S1 through 9.20.22-S1.(CVE-2026-3592)

Multiple flaws have been identified in `named` related to the handling of DNS messages whose CLASS is not Internet (`IN`) — for example, `C…

openSUSE-SU-2026:10874-1 — bind-9.20.23-1.1 on GA media

bind-9.20.23-1.1 on GA media

RHSA-2026:20334 — Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

bind: BIND 9 server memory exhaustion during GSS-API TKEY negotiation bind: Amplification vulnerabilities via self-pointed glue records bind: BIND: Denial of Service via specially crafted DNS messages bind: Unbounded resend loop in BIND 9 resolver

RLSA-2026:23360 — Important: bind9.16 security update

Affected: Rocky Linux:8: bind9.16

Security Fix(es):

* bind: BIND 9 server memory exhaustion during GSS-API TKEY negotiation (CVE-2026-3039)

* bind: BIND: Denial of Service via specially crafted DNS messages (CVE-2026-5946)

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-2026:22198-1 — Security update for bind

Security update for bind

UBUNTU-CVE-2026-5946

Affected: Ubuntu:Pro:18.04:LTS: bind9, 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:25.10: bind9, Ubuntu:26.04:LTS: bind9

WID-SEC-W-2026-1626 — Internet Systems Consortium BIND: Mehrere Schwachstellen

Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Internet Systems Consortium BIND ausnutzen, um eine Speicherbeschädigung auszulösen oder einen Denial-of-Service-Zustand zu verursachen.