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...

K000161463: NLnet Labs Unbound vulnerability CVE-2026-42960

Security Advisory Description 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 complement DNS replies in the authority section can be used to trick Unbound to cache such records. If an...

Debian dsa-6304 : libunbound-dev - security update

The remote Debian 13 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-6304 advisory. - ------------------------------------------------------------------------- Debian Security Advisory DSA-6304-1 [email protected] https://www.debian.org/securit...

RockyLinux 9 : unbound (RLSA-2026:18931)

The remote RockyLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:18931 advisory. unbound: DNSBomb vulnerability CVE-2024-33655 unbound: Unbound domain hijacking via promiscuous records CVE-2025-11411 Tenable has extracted the precedi...

[SECURITY] [DSA 6304-1] unbound security update

------------------------------------------------------------------------- Debian Security Advisory DSA-6304-1 [email protected] https://www.debian.org/security/ Moritz Muehlenhoff May 27, 2026 https://www.debian.org/security/faq -...

Fedora 44 : unbound (2026-49f37e16aa)

The remote Fedora 44 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-49f37e16aa advisory. Update to 1.25.1 rhbz2480119 - Fix CVE-2026-33278, Possible remote code execution during DNSSEC validation. Thanks to Qifan Zhang, Palo Alto Network...

Amazon Linux 2023 : python3-unbound, unbound, unbound-anchor (ALAS2023-2026-1756)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-1756 advisory. 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...

CVE-2026-42960

A flaw was found in Unbound's handling of DNS reply messages, complementing the earlier CVE-2025-11411 fix. Unbound accepts and caches address records from the additional section of DNS replies when they accompany authority section RRSets other than NS such as MX records. A malicious actor who ca...

CVE-2026-42923

A flaw was found in Unbound's DNSSEC validator where the code path for consulting the negative cache for DS records does not honor the limit on NSEC3 hash calculations introduced in version 1.19.1. An adversary who controls a DNSSEC-signed zone can sign NSEC3 records with high iteration counts fo...

CVE-2026-32792

A flaw was found in Unbound. A remote attacker can exploit this vulnerability by sending a specially crafted DNSCrypt query. This malicious query, when processed, causes Unbound to read beyond its allocated memory, leading to a heap overflow. This can result in a denial of service DoS by crashing...

[SECURITY] Fedora 44 Update: unbound-1.25.1-1.fc44

Unbound is a validating, recursive, and caching DNSSEC resolver. The C implementation of Unbound is developed and maintained by NLnet Labs. It is based on ideas and algorithms taken from a java prototype developed by Verisign labs, Nominet, Kirei and ep.net. Unbound is designed as a set of modula...

unbound: Packet of death with DNSCrypt

A flaw was found in Unbound. A remote attacker can exploit this vulnerability by sending a specially crafted DNSCrypt query. This malicious query, when processed, causes Unbound to read beyond its allocated memory, leading to a heap overflow. This can result in a denial of service DoS by crashing...

Moderate: Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

An update for Red Hat Hardened Images RPMs is now available. This update includes the following RPMs: unbound: python3-unbound-1.25.1-1.hum1 aarch64, x8664 unbound-1.25.1-1.hum1 aarch64, x8664 unbound-anchor-1.25.1-1.hum1 aarch64, x8664 unbound-devel-1.25.1-1.hum1 aarch64, x8664...

unbound: Unbound DNS Cache Poisoning via Promiscuous Additional Section RRSet Acceptance

A flaw was found in Unbound's handling of DNS reply messages, complementing the earlier CVE-2025-11411 fix. Unbound accepts and caches address records from the additional section of DNS replies when they accompany authority section RRSets other than NS such as MX records. A malicious actor who ca...

unbound: Unbound DNSSEC Validator NSEC3 Hash Calculation Limit Bypass via Negative Cache Code Path Leading to DoS

A flaw was found in Unbound's DNSSEC validator where the code path for consulting the negative cache for DS records does not honor the limit on NSEC3 hash calculations introduced in version 1.19.1. An adversary who controls a DNSSEC-signed zone can sign NSEC3 records with high iteration counts fo...

CVE-2026-32792 affecting package unbound for versions less than 1.25.1-1

CVE-2026-32792 affecting package unbound for versions less than 1.25.1-1. An upgraded version of the package is available that resolves this issue...

CVE-2026-44608 affecting package unbound for versions less than 1.25.1-1

CVE-2026-44608 affecting package unbound for versions less than 1.25.1-1. An upgraded version of the package is available that resolves this issue...

CVE-2026-33278 affecting package unbound for versions less than 1.25.1-1

CVE-2026-33278 affecting package unbound for versions less than 1.25.1-1. An upgraded version of the package is available that resolves this issue...

CVE-2026-42534 affecting package unbound for versions less than 1.25.1-1

CVE-2026-42534 affecting package unbound for versions less than 1.25.1-1. An upgraded version of the package is available that resolves this issue...

CVE-2026-42960 affecting package unbound for versions less than 1.25.1-1

CVE-2026-42960 affecting package unbound for versions less than 1.25.1-1. An upgraded version of the package is available that resolves this issue...