CVE-2026-42004

CVE-2026-42004 affects DNSdist via EDNS OPT handling. An attacker can craft an EDNS OPT record that DNSdist’s filtering ignores, but is rewritten to a valid OPT when EDNS Client Subnet is applied, allowing the backend to observe EDNS options DNSdist did not filter. Impact is limited to informatio...

SUSE-SU-2026:22160-1 Security update for unbound

This update for unbound fixes the following issues - CVE-2026-32792: Packet of death with DNSCrypt bsc1265583. - CVE-2026-33278: Possible remote code execution during DNSSEC validation bsc1265587. - CVE-2026-40622: "Ghost domain name" variant bsc1265581. - CVE-2026-41292: Parsing a long list of...

SUSE SLES15 Security Update : unbound (SUSE-SU-2026:2369-1)

The remote SUSE Linux SLES15 / SLESSAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:2369-1 advisory. This update for unbound fixes the following issues - CVE-2026-32792: Packet of death with DNSCrypt bsc1265583. - CVE-2026-33278:...

Security update for unbound

This update for unbound fixes the following issues CVE-2026-32792: Packet of death with DNSCrypt bsc1265583. CVE-2026-33278: Possible remote code execution during DNSSEC validation bsc1265587. CVE-2026-40622: "Ghost domain name" variant bsc1265581. CVE-2026-41292: Parsing a long list of incoming...

SUSE-SU-2026:2369-1 Security update for unbound

This update for unbound fixes the following issues - CVE-2026-32792: Packet of death with DNSCrypt bsc1265583. - CVE-2026-33278: Possible remote code execution during DNSSEC validation bsc1265587. - CVE-2026-40622: 'Ghost domain name' variant bsc1265581. - CVE-2026-41292: Parsing a long list of...

Important: unbound

Issue Overview: 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 c...

Amazon Linux 2 : unbound, --advisory ALAS2-2026-3322 (ALAS-2026-3322)

The version of unbound installed on the remote host is prior to 1.7.3-15. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2026-3322 advisory. NLnet Labs Unbound 1.19.1 up to and including version 1.25.0 has a vulnerability in the DNSSEC validator that enables...

Security update for unbound

This update for unbound fixes the following issues CVE-2026-32792: Packet of death with DNSCrypt bsc1265583. CVE-2026-33278: Possible remote code execution during DNSSEC validation bsc1265587. CVE-2026-40622: "Ghost domain name" variant bsc1265581. CVE-2026-41292: Parsing a long list of incoming...

SUSE-SU-2026:2281-1 Security update for unbound

This update for unbound fixes the following issues - CVE-2026-32792: Packet of death with DNSCrypt bsc1265583. - CVE-2026-33278: Possible remote code execution during DNSSEC validation bsc1265587. - CVE-2026-40622: 'Ghost domain name' variant bsc1265581. - CVE-2026-41292: Parsing a long list of...

ALSA-2026:23231 Important: unbound security update

The unbound packages provide a validating, recursive, and caching DNS or DNSSEC resolver. Security Fixes: unbound: Heap overflow and crash with multiple nsid, cookie, padding EDNS options CVE-2026-42944 unbound: Unbound DNSSEC Validator Denial of Service via Incorrect Write Offset Counter in...

USN-8282-2: Unbound vulnerabilities

USN-8282-1 fixed vulnerabilities in Unbound. This update provides the corresponding updates for CVE-2026-41292 in Ubuntu 18.04 LTS and Ubuntu 20.04 LTS and CVE-2026-42959, CVE-2026-42960 in Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, and Ubuntu 20.04 LTS. Original advisory details: Andr...

SUSE 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...

SUSE-SU-2026:21874-1 Security update for unbound

This update for unbound fixes the following issues - CVE-2026-32792: Packet of death with DNSCrypt bsc1265583. - CVE-2026-33278: Possible remote code execution during DNSSEC validation bsc1265587. - CVE-2026-40622: "Ghost domain name" variant bsc1265581. - CVE-2026-41292: Parsing a long list of...

Long list of incoming EDNS options degrades performance

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USN-8282-1: Unbound vulnerabilities

Andrew Griffiths discovered that Unbound did not properly handle certain DNSCrypt packets. A remote attacker could possibly use this issue to cause Unbound to crash, resulting in a denial of service. CVE-2026-32792 Qifan Zhang discovered that Unbound incorrectly handled DNSSEC validation in certa...

USN-8282-1 unbound vulnerabilities

Andrew Griffiths discovered that Unbound did not properly handle certain DNSCrypt packets. A remote attacker could possibly use this issue to cause Unbound to crash, resulting in a denial of service. CVE-2026-32792 Qifan Zhang discovered that Unbound incorrectly handled DNSSEC validation in certa...

ALPINE-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...

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...

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...

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...