PT-2026-42134

Name of the Vulnerable Software and Affected Versions NLnet Labs Unbound versions prior to 1.25.1 Description An issue exists when handling replies with very large RRsets Resource Record sets that require name compression. Malicious upstream responses containing very large RRsets with records tha...

PT-2026-42131

Name of the Vulnerable Software and Affected Versions NLnet Labs Unbound versions 1.14.0 through 1.25.0 Description A heap overflow occurs when encoding multiple NSID, DNS Cookie EDNS, and EDNS Padding options in a reply packet. This happens because a flaw in the size calculation of the EDNS fiel...

Linux Distros Unpatched Vulnerability : CVE-2026-41292

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - NLnet Labs Unbound up to and including version 1.25.0 is vulnerable to a degradation of service attack related to parsing long lists of incoming EDNS options. A...

Linux Distros Unpatched Vulnerability : CVE-2026-42923

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - NLnet Labs Unbound up to and including version 1.25.0 has a vulnerability in the DNSSEC validator where the code path to consult the negative cache for DS recor...

PT-2026-42135

Name of the Vulnerable Software and Affected Versions NLnet Labs Unbound versions 1.14.0 through 1.25.0 Description A locking inconsistency occurs when specific conditions are met: the system is multi-threaded, an RPZ Response Policy Zone XFR Zone Transfer reload is performed, and an RPZ zone...

CVE-2026-33278

NLnet Labs Unbound 1.19.1 up to and including version 1.25.0 has a vulnerability in the DNSSEC validator that enables denial of service and possible remote code execution as a result of deep copying a data structure and erroneously overwriting a destination pointer. An adversary can exploit the...

NLnet Labs Unbound 安全漏洞

NLnet Labs Unbound is a high-performance DNS resolver open-sourced by NLnet Labs. There are security vulnerabilities in the version of NLnet Labs Unbound from 1.14.0 to 1.25.0. These vulnerabilities stem from the truncation of size calculations when encoding multiple NSIDs and/or DNS Cookies, as...

NLnet Labs Unbound 安全漏洞

NLnet Labs Unbound is a high-performance DNS resolver open-sourced by NLnet Labs. Versions of NLnet Labs Unbound 1.25.0 and earlier contained security vulnerabilities. These vulnerabilities stemmed from the DNSSEC verifier failing to account for NSEC3 hash calculation restrictions when querying D...

NLnet Labs Unbound 缓冲区错误漏洞

NLnet Labs Unbound is a high-performance DNS resolver open-sourced by NLnet Labs. Versions of NLnet Labs Unbound 1.25.0 and earlier contained a buffer error vulnerability. This vulnerability stemmed from the use of incorrect counters in the DNSSEC verifier to calculate the write offset, resulting...

PT-2026-42129

Name of the Vulnerable Software and Affected Versions NLnet Labs Unbound versions prior to 1.25.1 Description An issue exists in the jostle logic that can degrade resolution performance. When the num-queries-per-thread limit is reached, the jostle logic identifies slow-resolving queries for...

PT-2026-42128

Name of the Vulnerable Software and Affected Versions NLnet Labs Unbound versions prior to 1.25.1 Description An issue exists related to the parsing of long lists of incoming EDNS Extension Mechanisms for DNS options. An adversary can send queries containing an excessive number of EDNS options,...

NLnet Labs Unbound 安全漏洞

NLnet Labs Unbound is a high-performance DNS resolver open-sourced by NLnet Labs. Versions of NLnet Labs Unbound 1.25.0 and earlier contained security vulnerabilities. These vulnerabilities stemmed from issues with timestamp updates in the jostle logic, which could prevent slow queries from being...

Linux Distros Unpatched Vulnerability : CVE-2026-42944

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - NLnet Labs Unbound 1.14.0 up to and including version 1.25.0 has a vulnerability that results in heap overflow when encoding multiple NSID and/or DNS Cookie EDN...

NLnet Labs Unbound 安全漏洞

NLnet Labs Unbound is a high-performance DNS resolver open-sourced by NLnet Labs. Versions of NLnet Labs Unbound 1.25.0 and earlier contained security vulnerabilities. These vulnerabilities were caused by mixed records in the authoritative section, leading to cache poisoning. Attackers could...

Linux Distros Unpatched Vulnerability : CVE-2026-42959

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - NLnet Labs Unbound up to and including version 1.25.0 has a denial of service vulnerability in the DNSSEC validator that can lead to a crash given malicious...

Linux Distros Unpatched Vulnerability : CVE-2026-44390

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - NLnet Labs Unbound up to and including version 1.25.0 has a vulnerability when handling replies with very large RRsets that Unbound needs to perform name...

Linux Distros Unpatched Vulnerability : CVE-2026-40622

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - NLnet Labs Unbound 1.16.2 up to and including version 1.25.0 has a vulnerability of the 'ghost domain names' family of attacks that could extend the ghost domai...

Linux Distros Unpatched Vulnerability : CVE-2026-44608

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - NLnet Labs Unbound 1.14.0 up to and including version 1.25.0 has a locking inconsistency vulnerability that when certain conditions are met multi-threaded, RPZ...

CVE-2026-42534

NLnet Labs Unbound up to and including version 1.25.0 has a vulnerability in the jostle logic that could defeat its purpose and degrade resolution performance. Retransmits of the same query could renew the age of slow running queries and not allow the jostle logic to see them as aged and potentia...

unbound: Unbound domain hijacking via promiscuous records

A domain hijacking flaw has been discovered in NLNet Lab's Unbound project. Promiscuous NS RRSets that complement positive DNS replies in the authority section can be used to trick resolvers to update their delegation information for the zone. Usually these RRSets are used to update the resolver'...