CVE-2026-44621

A flaw was found in libunbound, a library used by applications for DNS resolution. A remote attacker could exploit this vulnerability by sending specially crafted network traffic. This could cause applications using libunbound to terminate unexpectedly, leading to a denial of service DoS. This...

OESA-2026-3336 unbound security update

Unbound is a validating, recursive, caching DNS resolver. It is designed to be fast and lean and incorporates modern features based on open standards. To help increase online privacy, Unbound supports DNS-over-TLS which allows clients to encrypt their communication. Unbound is available for most...

OESA-2026-3335 unbound security update

Unbound is a validating, recursive, caching DNS resolver. It is designed to be fast and lean and incorporates modern features based on open standards. To help increase online privacy, Unbound supports DNS-over-TLS which allows clients to encrypt their communication. Unbound is available for most...

OESA-2026-3334 unbound security update

Unbound is a validating, recursive, caching DNS resolver. It is designed to be fast and lean and incorporates modern features based on open standards. To help increase online privacy, Unbound supports DNS-over-TLS which allows clients to encrypt their communication. Unbound is available for most...

OESA-2026-3333 unbound security update

Unbound is a validating, recursive, caching DNS resolver. It is designed to be fast and lean and incorporates modern features based on open standards. To help increase online privacy, Unbound supports DNS-over-TLS which allows clients to encrypt their communication. Unbound is available for most...

openSUSE 16: libunbound8 / python3-unbound / unbound / unbound-anchor / etc (openSUSE-SU-2026:21550-1)

The remote openSUSE 16 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:21550-1 advisory. Update to version 1.25.2. Security issues fixed: - CVE-2026-14586: DoS via assertion in libngtcp2 for DNS-over-QUIC environments with high...

Amazon Linux 2023 : python3-unbound, unbound, unbound-anchor (ALAS2023-2026-2033)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-2033 advisory. In NLnet Labs Unbound 1.16.2 up to and including 1.25.1, a similar vulnerability as with CVE-2026-40622 in the 'ghost domain names' family of attacks was found in Unbound that could extend the...

Important: unbound

Issue Overview: In NLnet Labs Unbound 1.16.2 up to and including 1.25.1, a similar vulnerability as with CVE-2026-40622 in the 'ghost domain names' family of attacks was found in Unbound that could extend the ghost domain window by up to one cached TTL configured value for A/AAAA glue records...

SUSE CVE-2026-44621

With NLnet Labs Unbound up to and including version 1.25.1, applications using libunbound and configured with 'unwanted-reply-threshold', could eventually be abruptly terminated if the threshold is reached and libunbound needs to call 'libworkeralloccleanup' since the function is absent from the...

CVE-2026-44621

With NLnet Labs Unbound up to and including version 1.25.1, applications using libunbound and configured with 'unwanted-reply-threshold', could eventually be abruptly terminated if the threshold is reached and libunbound needs to call 'libworkeralloccleanup' since the function is absent from the...

CVE-2026-44621

With NLnet Labs Unbound up to and including version 1.25.1, applications using libunbound and configured with 'unwanted-reply-threshold', could eventually be abruptly terminated if the threshold is reached and libunbound needs to call 'libworkeralloccleanup' since the function is absent from the...

CVE-2026-44621

With NLnet Labs Unbound up to and including version 1.25.1, applications using libunbound and configured with 'unwanted-reply-threshold', could eventually be abruptly terminated if the threshold is reached and libunbound needs to call 'libworkeralloccleanup' since the function is absent from the...

CVE-2026-44621 Libunbound applications configured with 'unwanted-reply-threshold' could eventually be abruptly terminated

With NLnet Labs Unbound up to and including version 1.25.1, applications using libunbound and configured with 'unwanted-reply-threshold', could eventually be abruptly terminated if the threshold is reached and libunbound needs to call 'libworkeralloccleanup' since the function is absent from the...

CVE-2026-44621

The CVE describes a vulnerability in NLnet Labs Unbound up to version 1.25.1 where applications using libunbound and configuring the unwanted-reply-threshold (non-zero) can trigger a fatal exit of libunbound when threshold is exceeded and libworker_alloc_cleanup is not on the function-call allow ...

libunbound8-1.21.1-1.1 on GA media (moderate)

libunbound8-1.21.1-1.1 on GA media Announcement ID: openSUSE-SU-2024:14391-1 Rating: moderate Cross-References: CVE-2024-8508 CVSS scores: CVE-2024-8508 SUSE : 5.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L CVE-2024-8508 SUSE : 6.9 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L...

Debian dla-3903 : libunbound-dev - security update

The remote Debian 11 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-3903 advisory. ------------------------------------------------------------------------- Debian LTS Advisory DLA-3903-1 [email protected]...

OPENSUSE-SU-2024:10121-1 libunbound-devel-mini-1.5.10-1.1 on GA media

These are all security issues fixed in the libunbound-devel-mini-1.5.10-1.1 package on the GA media of openSUSE Tumbleweed...

SUSE SLED15: libunbound8 / unbound / unbound-anchor / unbound-devel / etc (SUSE-SU-2024:1991-1)

The remote SUSE Linux SLED15 / SLEDSAP15 / SLES15 / SLESSAP15 / openSUSE 15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2024:1991-1 advisory. unbound was updated to 1.20.0: A lot of bugfixes and added features. For a complete list take a...

SUSE-SU-2024:1991-2 Security update for unbound

This update for unbound fixes the following issues: unbound was updated to 1.20.0: A lot of bugfixes and added features. For a complete list take a look at the changelog located at: /usr/share/doc/packages/unbound/Changelog or https://www.nlnetlabs.nl/projects/unbound/download/ Some Noteworthy...

SUSE-SU-2024:1991-1 Security update for unbound

This update for unbound fixes the following issues: unbound was updated to 1.20.0: A lot of bugfixes and added features. For a complete list take a look at the changelog located at: /usr/share/doc/packages/unbound/Changelog or https://www.nlnetlabs.nl/projects/unbound/download/ Some Noteworthy...