CVE-2026-78301

A flaw was found in BIND, a widely used Domain Name System DNS software. A remote attacker could exploit this by introducing a specially crafted, malformed DNS zone into an authoritative BIND server. This action could cause the server to incorrectly delegate authority for parts of its own...

CVE-2026-75029

A flaw was found in BIND 9. A remote attacker could send multiple copies of a single record in a query response to the named service. This could lead to increased memory usage in the negative cache, potentially causing a Denial of Service DoS due to memory exhaustion. Mitigation To mitigate this...

CVE-2026-19668

A flaw was found in BIND, a widely used Domain Name System DNS software. A remote attacker could exploit this vulnerability by sending a large number of specially crafted, invalid DNSSEC Domain Name System Security Extensions records to a BIND recursive resolver. This could lead to excessive...

CVE-2026-81563

A flaw was found in the BIND resolver. A remote attacker could exploit a vulnerability in the processing of SVCB/HTTPS AliasMode records that reference numerous ServiceMode records. This could lead to the resolver failing to properly release internal resources, causing resource exhaustion. Repeat...

CVE-2026-80274

A flaw was found in BIND. A remote attacker, by sending a specially crafted DNSSEC-signed authoritative zone reply, can trigger an unexpected program exit in the validating resolver. This can lead to a Denial of Service DoS for the affected BIND resolver. Mitigation To mitigate this issue, disabl...

CVE-2026-77692

A flaw was found in BIND, a widely used Domain Name System DNS software. A remote attacker can exploit this vulnerability by sending a specially crafted DNS-over-HTTPS DoH request containing an invalid SIG0 record. This action, combined with prematurely closing the connection, can cause the named...

CVE-2026-76163

A flaw was found in BIND. A remote attacker can exploit this vulnerability by sending a specially crafted TKEY query to a BIND server configured without a global 'options' block in its 'named.conf' file. This can lead to an assertion failure, causing the BIND program to unexpectedly terminate. Th...

CVE-2026-19666

A flaw was found in BIND. When a resolver is configured to use DNS64, a specially crafted, malformed answer from an authoritative server can cause the named process to exit unexpectedly. This can lead to a Denial of Service DoS for clients relying on the affected resolver. Mitigation To mitigate...

CVE-2026-81736

A flaw was found in BIND 9. A remote attacker can exploit this vulnerability by querying a BIND resolver for the root of a specially crafted, cached tree of SVCB/HTTPS AliasMode records. This action causes the resolver to spend a disproportionate amount of CPU time constructing the response,...

EUVD-2026-80787

A validly signed NSEC3 from an unrelated sibling zone may be accepted as an insecurity proof, downgrading a secure delegation and letting a forged unsigned answer through. This issue affects BIND 9 versions 9.11.0 through 9.18.50, 9.20.0 through 9.20.27, 9.21.0 through 9.21.25, 9.11.3-S1 through...

CVE-2026-77119

BIND 9 (ISC) has a DNSSEC NSEC3 insecure-referral proof flaw: a validly signed NSEC3 RRset from an unrelated sibling zone may be accepted as proof of non-existence, downgrading a secure delegation and allowing a forged unsigned answer through. Affected versions are 9.11.0–9.18.50, 9.20.0–9.20.27,...

CVE-2026-77119 NSEC3 insecure-referral proof can use unrelated cached NSEC3 RRsets

A validly signed NSEC3 from an unrelated sibling zone may be accepted as an insecurity proof, downgrading a secure delegation and letting a forged unsigned answer through. This issue affects BIND 9 versions 9.11.0 through 9.18.50, 9.20.0 through 9.20.27, 9.21.0 through 9.21.25, 9.11.3-S1 through...

CVE-2026-77119 NSEC3 insecure-referral proof can use unrelated cached NSEC3 RRsets

A validly signed NSEC3 from an unrelated sibling zone may be accepted as an insecurity proof, downgrading a secure delegation and letting a forged unsigned answer through. This issue affects BIND 9 versions 9.11.0 through 9.18.50, 9.20.0 through 9.20.27, 9.21.0 through 9.21.25, 9.11.3-S1 through...

AZL-103362 CVE-2026-81736 affecting package bind 9.20.26-1

If a BIND resolver has cached a tree of SVCB/HTTPS AliasMode records, and is then queried for the root of that tree, the resolver will spend disproportionate CPU time constructing the response. This issue affects BIND 9 versions 9.18.0 through 9.18.50, 9.20.0 through 9.20.27, 9.21.0 through...

AZL-103347 CVE-2026-81563 affecting package bind 9.20.26-1

A BIND resolver encountering an SVCB/HTTPS AliasMode record referencing 14 or more SVCB/HTTPS ServiceMode records may fail to properly deallocate internal resources. If this happens repeatedly, resource exhaustion will eventually prevent the resolver from performing new recursive lookups. This...

DEBIAN-CVE-2026-81736

If a BIND resolver has cached a tree of SVCB/HTTPS AliasMode records, and is then queried for the root of that tree, the resolver will spend disproportionate CPU time constructing the response. This issue affects BIND 9 versions 9.18.0 through 9.18.50, 9.20.0 through 9.20.27, 9.21.0 through...

CVE-2026-78301

A malformed zone may contain an NS or DNAME node above its origin, which named treats as a zone cut. If an attacker inserts a malformed zone into a BIND authoritative server e.g., via zone transfer, queries for names inside the configured zone then lose authoritative status and return an...

AZL-103332 CVE-2026-78301 affecting package bind 9.20.26-1

A malformed zone may contain an NS or DNAME node above its origin, which named treats as a zone cut. If an attacker inserts a malformed zone into a BIND authoritative server e.g., via zone transfer, queries for names inside the configured zone then lose authoritative status and return an...

DEBIAN-CVE-2026-81563

A BIND resolver encountering an SVCB/HTTPS AliasMode record referencing 14 or more SVCB/HTTPS ServiceMode records may fail to properly deallocate internal resources. If this happens repeatedly, resource exhaustion will eventually prevent the resolver from performing new recursive lookups. This...

DEBIAN-CVE-2026-78301

A malformed zone may contain an NS or DNAME node above its origin, which named treats as a zone cut. If an attacker inserts a malformed zone into a BIND authoritative server e.g., via zone transfer, queries for names inside the configured zone then lose authoritative status and return an...