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...

Linux Distros Unpatched Vulnerability : CVE-2026-42960

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 poisoning via promiscuous records for the authority section. Promiscuous RRSets that...

CVE-2026-40622

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 domain window by up to one cached TTL configured value. Similar to other 'ghost domain names' attacks, an adversary needs to control a ghost...

PT-2026-42127

Name of the Vulnerable Software and Affected Versions Unbound versions 1.16.2 through 1.25.0 Description An issue exists within the ghost domain names family of attacks that allows an adversary who controls a ghost zone and can query the system to extend the ghost domain window by up to one cache...

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...

Linux Distros Unpatched Vulnerability : CVE-2026-42534

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 jostle logic that could defeat its purpose and degrade resolution performance...

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...

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 unbound name compression operations when handling large RRsets, which could lead to performanc...

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...

CVE-2026-42959

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 upstream replies. When Unbound constructs chase-reply messages for validation, the code uses the wrong counter to calculate write offsets fo...

NLnet Labs Unbound 访问控制错误漏洞

NLnet Labs Unbound is a high-performance DNS resolver open-sourced by NLnet Labs. In versions 1.16.2 to 1.25.0 of NLnet Labs Unbound, there is an access control vulnerability. This vulnerability stems from a phantom domain attack. It allows attackers to control phantoms and query the vulnerable...

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...

CVE-2026-44608

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 XFR reload, RPZ zone with 'rpz-nsip'/'rpz-nsdname' triggers it could result in heap use-after-free and eventual crash. An adversary can...

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-2026-42923

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 records does not take into account the limit on NSEC3 hash calculations introduced in 1.19.1. This leads to degradation of service during 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 possibility of service degradation when processing a large number of incoming EDNS options...

CVE-2026-42944

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 EDNS and/or EDNS Padding options in the reply packet. The relevant options 'nsid', 'answer-cookie', 'pad-responses' default need to be enabl...

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,...