CVE-2023-50387

Repository based on https://github.com/knqyf263/CVE-2023-50387 with several modifications: Added resolver-fixed, which has an implementation of Unbound where the vulnerability we discussed is fixed. Created scripts for automating the generation of RRSIG keys. To auto-generate configuration files:...

DEBIAN-CVE-2026-35501

When NLnet Labs Unbound 1.0.1 up to and including version 1.26.1 is configured with both a root trust anchor and an additional 'trust-anchor:' for an island-of-security zone whose parent is provably insecure under the root chain, a malicious actor with a forged NSEC reply with the SOA bit cleared...

AZL-109821 CVE-2026-35501 affecting package unbound 1.26.1-1

When NLnet Labs Unbound 1.0.1 up to and including version 1.26.1 is configured with both a root trust anchor and an additional 'trust-anchor:' for an island-of-security zone whose parent is provably insecure under the root chain, a malicious actor with a forged NSEC reply with the SOA bit cleared...

CVE-2026-35501

When NLnet Labs Unbound 1.0.1 up to and including version 1.26.1 is configured with both a root trust anchor and an additional 'trust-anchor:' for an island-of-security zone whose parent is provably insecure under the root chain, a malicious actor with a forged NSEC reply with the SOA bit cleared...

Linux Distros Unpatched Vulnerability : CVE-2026-35501

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - When NLnet Labs Unbound 1.0.1 up to and including version 1.26.1 is configured with both a root trust anchor and an additional 'trust-anchor:' for an...

bind: bind9: Cache poisoning via label count discrepancy, RRSIG, 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...

bind: bind9: Cache poisoning via label count discrepancy, RRSIG, 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...

Updated bind package fixes a security vulnerability

It was discovered that Bind incorrectly handled DNSSEC validation when a domain was covered by both NSEC and NSEC3 records with only one type having an RRSIG. A remote attacker could possibly use this issue to cause Bind to crash, resulting in a denial of service CVE-2026-13204...

K000163212: BIND vulnerability CVE-2026-13204

Security Advisory Description If a provably insecure domain is covered by both an NSEC and NSEC3 record at the parent, and there exist an RRSIG for only one of these types, then BIND may exit unexpectedly with an assertion while validating this proof. This issue affects BIND 9 versions 9.11.0...

K000163180: BIND vulnerability CVE-2026-11605

Security Advisory Description The issue is a resource exhaustion vulnerability associated with DNSSEC validation. BIND always validates all RRSIG records in an answer, even if they are not strictly needed. A query to an authoritative server/zone which returns many valid but superfluous RRSIG...

USN-8696-1 bind9 vulnerability

It was discovered that Bind incorrectly handled DNSSEC validation when a domain was covered by both NSEC and NSEC3 records with only one type having an RRSIG. A remote attacker could possibly use this issue to cause Bind to crash, resulting in a denial of service...

USN-8696-1: Bind vulnerability

It was discovered that Bind incorrectly handled DNSSEC validation when a domain was covered by both NSEC and NSEC3 records with only one type having an RRSIG. A remote attacker could possibly use this issue to cause Bind to crash, resulting in a denial of service...

MiracleLinux 9 : unbound-1.24.2-3.el9_8.4 (AXSA:2026-1692:11)

The remote MiracleLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2026-1692:11 advisory. unbound: Unbound: Cache poisoning via insufficient RRSIG.Labels validation and premature cache writes CVE-2026-44690 unbound: Unbound: Denial of...

TencentOS Server 3: unbound (TSSA-2026:0904)

The version of Tencent Linux installed on the remote TencentOS Server 3 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the TSSA-2026:0904 advisory. Package updates are available for TencentOS Server 3 that fix the following vulnerabilities:...

TencentOS Server 3: bind9.16 (TSSA-2026:0925)

The version of Tencent Linux installed on the remote TencentOS Server 3 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2026:0925 advisory. Package updates are available for TencentOS Server 3 that fix the following vulnerabilities...

bind: bind9: Cache poisoning via label count discrepancy, RRSIG, 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...

bind: bind9: Unexpected exit with NSEC and NSEC3 both present

If a provably insecure domain is covered by both an NSEC and NSEC3 record at the parent, and there exist an RRSIG for only one of these types, then BIND may exit unexpectedly with an assertion while validating this proof...

Unity Linux 20.1050a / 20.1060a / 20.1070a Security Update: unbound (UTSA-2026-104836)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-104836 advisory. In NLnet Labs Unbound 1.7.0 up to and including 1.25.1, insufficient validation of the RRSIG.Labels field combined with premature cache writes during RFC 8198...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: unbound (UTSA-2026-104802)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-104802 advisory. In NLnet Labs Unbound up to and including version 1.25.1, when the validator builds the canonical RDATA form for an RRSIG-covered PX/RP/MINFO/SOA RRset, it computes...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: bind (UTSA-2026-102694)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-102694 advisory. 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...