CVE-2026-11622

A DNSSEC validating resolver that is under a random subdomain attack against a DNSSEC-signed zone can suffer from runaway memory usage. The attacker needs to be able to send queries faster than the resolver can perform validation. The increased memory usage can be orders of magnitude beyond the...

CVE-2026-13204

CVE-2026-13204 affects BIND 9 up to 9.18.50, 9.20.24, 9.21.23 and related S1 variants. If a provably insecure domain is covered by both NSEC and NSEC3 at the parent and an RRSIG exists for only one type, BIND may exit unexpectedly with an assertion during proof validation. Mitigation is to upgrad...

CVE-2026-11721 Cache poisoning possible with label count discrepancy, RRSIG, and wildcards

It is possible for an attacker's zone to respond to a query with an RRSIG that has a smaller number of labels than the zone in which the RRSIG is contained. This causes named to produce a wildcard name for a zone that is shorter than the attacker's zone, which can result in cache poisoning. For...

SUSE 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 - recursio...

SUSE CVE-2026-5947

Undefined behavior may result due to a race condition leading to a use-after-free violation. If BIND receives an incoming DNS message signed with SIG0, it begins work to validate that signature. If, during that validation, the "recursive-clients" limit is reached as would occur during a query...

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 — recursio...

ALPINE-CVE-2026-5947

Undefined behavior may result due to a race condition leading to a use-after-free violation. If BIND receives an incoming DNS message signed with SIG0, it begins work to validate that signature. If, during that validation, the "recursive-clients" limit is reached as would occur during a query...

EUVD-2026-31110

Undefined behavior may result due to a race condition leading to a use-after-free violation. If BIND receives an incoming DNS message signed with SIG0, it begins work to validate that signature. If, during that validation, the "recursive-clients" limit is reached as would occur during a query...

CVE-2026-5946 Invalid handling of CLASS != IN

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 — recursio...

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 — recursio...

CVE-2026-3593

A use-after-free vulnerability exists within the DNS-over-HTTPS implementation. This issue affects BIND 9 versions 9.20.0 through 9.20.22, 9.21.0 through 9.21.21, and 9.20.9-S1 through 9.20.22-S1. BIND 9 versions 9.18.0 through 9.18.48 and 9.18.11-S1 through 9.18.48-S1 are NOT affected...

PT-2026-42163

Name of the Vulnerable Software and Affected Versions BIND 9 versions 9.11.0 through 9.16.50 BIND 9 versions 9.18.0 through 9.18.48 BIND 9 versions 9.20.0 through 9.20.22 BIND 9 versions 9.21.0 through 9.21.21 BIND 9 versions 9.11.3-S1 through 9.16.50-S1 BIND 9 versions 9.18.11-S1 through...

Unity Linux 20.1060e / 20.1070e Security Update: bind (UTSA-2026-017654)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-017654 advisory. In BIND 9.0.0 - 9.11.29, 9.12.0 - 9.16.13, and versions BIND 9.9.3-S1 - 9.11.29-S1 and 9.16.8-S1 - 9.16.13-S1 of BIND Supported Preview Edition, as well as release...

Unity Linux 20.1060e / 20.1070e Security Update: bind (UTSA-2026-017624)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-017624 advisory. BIND servers are vulnerable if they are running an affected version and are configured to use GSS-TSIG features. In a configuration which uses BIND's default setting...

OESA-2026-2058 bind security update

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 ...

CVE-2026-3104 affecting package bind for versions less than 9.20.21-1

CVE-2026-3104 affecting package bind for versions less than 9.20.21-1. An upgraded version of the package is available that resolves this issue...

SUSE CVE-2026-3591

A use-after-return vulnerability exists in the named server when handling DNS queries signed with SIG0. Using a specially-crafted DNS request, an attacker may be able to cause an ACL to improperly mismatch an IP address. In a default-allow ACL denying only specific IP addresses, this may lead to...

CVE-2026-3591

A use-after-return vulnerability exists in the named server when handling DNS queries signed with SIG0. Using a specially-crafted DNS request, an attacker may be able to cause an ACL to improperly mismatch an IP address. In a default-allow ACL denying only specific IP addresses, this may lead to...

DEBIAN-CVE-2026-3119

Under certain conditions, named may crash when processing a correctly signed query containing a TKEY record. The affected code can only be reached if an incoming request has a valid transaction signature TSIG from a key declared in the named configuration. This issue affects BIND 9 versions 9.20....

CVE-2026-3591

A use-after-return vulnerability exists in the named server when handling DNS queries signed with SIG0. Using a specially-crafted DNS request, an attacker may be able to cause an ACL to improperly mismatch an IP address. In a default-allow ACL denying only specific IP addresses, this may lead to...