# CVE-2026-42959: Crash during DNSSEC validation of malicious content

CVE-2026-42959 is fixed in 17 products on 1 platform, first by libunbound2 1.6.7-1ubuntu2.6+esm4, released May 19, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-42959
- Priority: High
- CVSS: 8.1 (Moderate)
- EPSS: 0.0081
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: May 19, 2026
- Weakness: Access of Uninitialized Pointer
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-42959

## Description

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 for ADDITIONAL section rrsets. DNAME duplication could increase the ANSWER section count and authority filtering could decrease the AUTHORITY section count and create an uninitialized array slot. Combining these two, the validator later dereferences this uninitialized pointer, causing an immediate process crash. An adversary controlling a DNSSEC-signed domain can trigger this bug with a single query by configuring a DNAME chain with unsigned CNAMEs and a response containing unsigned AUTHORITY records alongside signed ADDITIONAL glue records. Unbound 1.25.1 contains a patch with a fix to use the proper counters to calculate the write offsets.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | libunbound2 Ubuntu 18.04.6 LTS (bionic) | 1.6.7-1ubuntu2.6+esm4 | [libunbound2 1.6.7-1ubuntu2.6+esm4](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libunbound2-1.6.7-1ubuntu2.6-esm4.md) | May 19, 2026 |
| Linux | libunbound8 Ubuntu 20.04 LTS (focal) | 1.9.4-2ubuntu1.11+esm1 | [libunbound8 1.9.4-2ubuntu1.11+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libunbound8-1.9.4-2ubuntu1.11-esm1.md) | May 19, 2026 |
| Linux | libunbound8 Ubuntu 22.04.1 LTS (jammy) | 1.13.1-1ubuntu5.15 | [libunbound8 1.13.1-1ubuntu5.15](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libunbound8-1.13.1-1ubuntu5.15.md) | May 27, 2026 |
| Linux | libunbound8 Ubuntu 24.04.5 LTS (noble) | 1.19.2-1ubuntu3.8 | [libunbound8 1.19.2-1ubuntu3.8](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libunbound8-1.19.2-1ubuntu3.8.md) | May 27, 2026 |
| Linux | libunbound8 Ubuntu 25.10 (questing) | 1.22.0-2ubuntu2.3 | [libunbound8 1.22.0-2ubuntu2.3](https://patchblox.com/security/data/fix/linux/ubuntu-questing-libunbound8-1.22.0-2ubuntu2.3.md) | May 27, 2026 |
| Linux | libunbound8 Ubuntu 26.04.1 LTS (resolute) | 1.24.2-1ubuntu2.1 | [libunbound8 1.24.2-1ubuntu2.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libunbound8-1.24.2-1ubuntu2.1.md) | May 19, 2026 |
| Linux | python-unbound Ubuntu 18.04.6 LTS (bionic) | 1.6.7-1ubuntu2.6+esm4 | [python-unbound 1.6.7-1ubuntu2.6+esm4](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-python-unbound-1.6.7-1ubuntu2.6-esm4.md) | May 19, 2026 |
| Linux | python-unbound Ubuntu 20.04 LTS (focal) | 1.9.4-2ubuntu1.11+esm1 | [python-unbound 1.9.4-2ubuntu1.11+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-python-unbound-1.9.4-2ubuntu1.11-esm1.md) | May 19, 2026 |
| Linux | python3-unbound RHEL 8 | 0:1.16.2-5.11.el8_10 | [RHSA-2026:24365](https://patchblox.com/security/data/fix/linux/rhsa-2026-24365.md) | Jun 24, 2026 |
| Linux | python3-unbound RHEL 9 | 0:1.24.2-3.el9_8.1 | [RHSA-2026:24369](https://patchblox.com/security/data/fix/linux/rhsa-2026-24369.md) | Jun 24, 2026 |
| Linux | python3-unbound Ubuntu 18.04.6 LTS (bionic) | 1.6.7-1ubuntu2.6+esm4 | [python3-unbound 1.6.7-1ubuntu2.6+esm4](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-python3-unbound-1.6.7-1ubuntu2.6-esm4.md) | May 19, 2026 |
| Linux | python3-unbound Ubuntu 20.04 LTS (focal) | 1.9.4-2ubuntu1.11+esm1 | [python3-unbound 1.9.4-2ubuntu1.11+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-python3-unbound-1.9.4-2ubuntu1.11-esm1.md) | May 19, 2026 |
| Linux | python3-unbound Ubuntu 22.04.1 LTS (jammy) | 1.13.1-1ubuntu5.15 | [python3-unbound 1.13.1-1ubuntu5.15](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-python3-unbound-1.13.1-1ubuntu5.15.md) | May 27, 2026 |
| Linux | python3-unbound Ubuntu 24.04.5 LTS (noble) | 1.19.2-1ubuntu3.8 | [python3-unbound 1.19.2-1ubuntu3.8](https://patchblox.com/security/data/fix/linux/ubuntu-noble-python3-unbound-1.19.2-1ubuntu3.8.md) | May 27, 2026 |
| Linux | python3-unbound Ubuntu 25.10 (questing) | 1.22.0-2ubuntu2.3 | [python3-unbound 1.22.0-2ubuntu2.3](https://patchblox.com/security/data/fix/linux/ubuntu-questing-python3-unbound-1.22.0-2ubuntu2.3.md) | May 27, 2026 |
| Linux | python3-unbound Ubuntu 26.04.1 LTS (resolute) | 1.24.2-1ubuntu2.1 | [python3-unbound 1.24.2-1ubuntu2.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-python3-unbound-1.24.2-1ubuntu2.1.md) | May 19, 2026 |
| Linux | python3-unbound almalinux 10 | 1.24.2-7.el10_2.1 | [ALSA-2026:23231](https://patchblox.com/security/data/fix/linux/alsa-2026-23231.md) | Jun 4, 2026 |
| Linux | python3-unbound almalinux 8 | 1.16.2-5.11.el8_10 | [ALSA-2026:24365](https://patchblox.com/security/data/fix/linux/alsa-2026-24365.md) | Jun 8, 2026 |
| Linux | python3-unbound almalinux 9 | 1.24.2-3.el9_8.1 | [ALSA-2026:24369](https://patchblox.com/security/data/fix/linux/alsa-2026-24369.md) | Jun 8, 2026 |
| Linux | python3-unbound amzn 2023 | 1.17.1-1.amzn2023.0.12 | [ALAS2023-2026-1756](https://patchblox.com/security/data/fix/linux/alas2023-2026-1756.md) | May 25, 2026 |
| Linux | python3-unbound ol 10 | 0:1.24.2-7.el10_2.2 | [ELSA-2026-23231](https://patchblox.com/security/data/fix/linux/elsa-2026-23231.md) | Jul 21, 2026 |
| Linux | python3-unbound ol 8 | 0:1.16.2-5.11.el8_10 | [ELSA-2026-24365](https://patchblox.com/security/data/fix/linux/elsa-2026-24365.md) | Jun 8, 2026 |
| Linux | python3-unbound ol 9 | 0:1.24.2-3.el9_8.1 | [ELSA-2026-24369](https://patchblox.com/security/data/fix/linux/elsa-2026-24369.md) | Jun 23, 2026 |
| Linux | python3-unbound-debuginfo amzn 2023 | 1.17.1-1.amzn2023.0.12 | [ALAS2023-2026-1756](https://patchblox.com/security/data/fix/linux/alas2023-2026-1756.md) | May 25, 2026 |
| Linux | unbound Debian 13.5 (trixie) | 1.22.0-2+deb13u3 | [DEBIAN-CVE-2026-42959](https://patchblox.com/security/data/fix/linux/debian-cve-2026-42959.md) | May 27, 2026 |
| Linux | unbound Debian 14 | 1.25.1-1 | [DEBIAN-CVE-2026-42959](https://patchblox.com/security/data/fix/linux/debian-cve-2026-42959.md) | May 27, 2026 |
| Linux | unbound RHEL 10 | 1.24.2-7.el10_2.1 | [RHSA-2026:23231](https://patchblox.com/security/data/fix/linux/rhsa-2026-23231.md) | May 20, 2026 |
| Linux | unbound RHEL 8 | 0:1.16.2-5.11.el8_10 | [RHSA-2026:24365](https://patchblox.com/security/data/fix/linux/rhsa-2026-24365.md) | Jun 24, 2026 |
| Linux | unbound RHEL 9 | 0:1.24.2-3.el9_8.1 | [RHSA-2026:24369](https://patchblox.com/security/data/fix/linux/rhsa-2026-24369.md) | Jun 24, 2026 |
| Linux | unbound Ubuntu 18.04.6 LTS (bionic) | 1.6.7-1ubuntu2.6+esm4 | [unbound 1.6.7-1ubuntu2.6+esm4](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-unbound-1.6.7-1ubuntu2.6-esm4.md) | May 19, 2026 |
| Linux | unbound Ubuntu 20.04 LTS (focal) | 1.9.4-2ubuntu1.11+esm1 | [unbound 1.9.4-2ubuntu1.11+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-unbound-1.9.4-2ubuntu1.11-esm1.md) | May 19, 2026 |
| Linux | unbound Ubuntu 22.04.1 LTS (jammy) | 1.13.1-1ubuntu5.15 | [unbound 1.13.1-1ubuntu5.15](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-unbound-1.13.1-1ubuntu5.15.md) | May 27, 2026 |
| Linux | unbound Ubuntu 24.04.5 LTS (noble) | 1.19.2-1ubuntu3.8 | [unbound 1.19.2-1ubuntu3.8](https://patchblox.com/security/data/fix/linux/ubuntu-noble-unbound-1.19.2-1ubuntu3.8.md) | May 27, 2026 |
| Linux | unbound Ubuntu 25.10 (questing) | 1.22.0-2ubuntu2.3 | [unbound 1.22.0-2ubuntu2.3](https://patchblox.com/security/data/fix/linux/ubuntu-questing-unbound-1.22.0-2ubuntu2.3.md) | May 27, 2026 |
| Linux | unbound Ubuntu 26.04.1 LTS (resolute) | 1.24.2-1ubuntu2.1 | [unbound 1.24.2-1ubuntu2.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-unbound-1.24.2-1ubuntu2.1.md) | May 19, 2026 |
| Linux | unbound almalinux 10 | 1.24.2-7.el10_2.1 | [ALSA-2026:23231](https://patchblox.com/security/data/fix/linux/alsa-2026-23231.md) | Jun 4, 2026 |
| Linux | unbound almalinux 8 | 1.16.2-5.11.el8_10 | [ALSA-2026:24365](https://patchblox.com/security/data/fix/linux/alsa-2026-24365.md) | Jun 8, 2026 |
| Linux | unbound almalinux 9 | 1.24.2-3.el9_8.1 | [ALSA-2026:24369](https://patchblox.com/security/data/fix/linux/alsa-2026-24369.md) | Jun 8, 2026 |
| Linux | unbound amzn 2023 | 1.17.1-1.amzn2023.0.12 | [ALAS2023-2026-1756](https://patchblox.com/security/data/fix/linux/alas2023-2026-1756.md) | May 25, 2026 |
| Linux | unbound ol 10 | 0:1.24.2-7.el10_2.2 | [ELSA-2026-23231](https://patchblox.com/security/data/fix/linux/elsa-2026-23231.md) | Jul 21, 2026 |
| Linux | unbound ol 8 | 0:1.16.2-5.11.el8_10 | [ELSA-2026-24365](https://patchblox.com/security/data/fix/linux/elsa-2026-24365.md) | Jun 8, 2026 |
| Linux | unbound ol 9 | 0:1.24.2-3.el9_8.1 | [ELSA-2026-24369](https://patchblox.com/security/data/fix/linux/elsa-2026-24369.md) | Jun 23, 2026 |
| Linux | unbound opensuse-leap 16.0 | 1.24.1-160000.2.1 | [OPENSUSE-SU-2026:21083-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-21083-1.md) | Jun 18, 2026 |
| Linux | unbound rocky 10 | 0:1.24.2-7.el10_2.1 | [RLSA-2026:23231](https://patchblox.com/security/data/fix/linux/rlsa-2026-23231.md) | Jun 6, 2026 |
| Linux | unbound rocky 8 | 0:1.16.2-5.11.el8_10 | [RLSA-2026:24365](https://patchblox.com/security/data/fix/linux/rlsa-2026-24365.md) | Jun 11, 2026 |
| Linux | unbound rocky 9 | 0:1.24.2-3.el9_8.1 | [RLSA-2026:24369](https://patchblox.com/security/data/fix/linux/rlsa-2026-24369.md) | Jun 11, 2026 |
| Linux | unbound sles 16.0 | 1.24.1-160000.2.1 | [SUSE-SU-2026:22160-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-22160-1.md) | Jun 18, 2026 |
| Linux | unbound-anchor Ubuntu 18.04.6 LTS (bionic) | 1.6.7-1ubuntu2.6+esm4 | [unbound-anchor 1.6.7-1ubuntu2.6+esm4](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-unbound-anchor-1.6.7-1ubuntu2.6-esm4.md) | May 19, 2026 |
| Linux | unbound-anchor Ubuntu 20.04 LTS (focal) | 1.9.4-2ubuntu1.11+esm1 | [unbound-anchor 1.9.4-2ubuntu1.11+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-unbound-anchor-1.9.4-2ubuntu1.11-esm1.md) | May 19, 2026 |
| Linux | unbound-anchor Ubuntu 22.04.1 LTS (jammy) | 1.13.1-1ubuntu5.15 | [unbound-anchor 1.13.1-1ubuntu5.15](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-unbound-anchor-1.13.1-1ubuntu5.15.md) | May 27, 2026 |
| Linux | unbound-anchor Ubuntu 24.04.5 LTS (noble) | 1.19.2-1ubuntu3.8 | [unbound-anchor 1.19.2-1ubuntu3.8](https://patchblox.com/security/data/fix/linux/ubuntu-noble-unbound-anchor-1.19.2-1ubuntu3.8.md) | May 27, 2026 |
| Linux | unbound-anchor Ubuntu 25.10 (questing) | 1.22.0-2ubuntu2.3 | [unbound-anchor 1.22.0-2ubuntu2.3](https://patchblox.com/security/data/fix/linux/ubuntu-questing-unbound-anchor-1.22.0-2ubuntu2.3.md) | May 27, 2026 |
| Linux | unbound-anchor Ubuntu 26.04.1 LTS (resolute) | 1.24.2-1ubuntu2.1 | [unbound-anchor 1.24.2-1ubuntu2.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-unbound-anchor-1.24.2-1ubuntu2.1.md) | May 19, 2026 |
| Linux | unbound-anchor almalinux 10 | 1.24.2-7.el10_2.1 | [ALSA-2026:23231](https://patchblox.com/security/data/fix/linux/alsa-2026-23231.md) | Jun 4, 2026 |
| Linux | unbound-anchor amzn 2023 | 1.17.1-1.amzn2023.0.12 | [ALAS2023-2026-1756](https://patchblox.com/security/data/fix/linux/alas2023-2026-1756.md) | May 25, 2026 |
| Linux | unbound-anchor ol 10 | 0:1.24.2-7.el10_2.2 | [ELSA-2026-23231](https://patchblox.com/security/data/fix/linux/elsa-2026-23231.md) | Jul 21, 2026 |
| Linux | unbound-anchor-debuginfo amzn 2023 | 1.17.1-1.amzn2023.0.12 | [ALAS2023-2026-1756](https://patchblox.com/security/data/fix/linux/alas2023-2026-1756.md) | May 25, 2026 |
| Linux | unbound-debuginfo amzn 2023 | 1.17.1-1.amzn2023.0.12 | [ALAS2023-2026-1756](https://patchblox.com/security/data/fix/linux/alas2023-2026-1756.md) | May 25, 2026 |
| Linux | unbound-debugsource amzn 2023 | 1.17.1-1.amzn2023.0.12 | [ALAS2023-2026-1756](https://patchblox.com/security/data/fix/linux/alas2023-2026-1756.md) | May 25, 2026 |
| Linux | unbound-devel RHEL 8 | 0:1.16.2-5.11.el8_10 | [RHSA-2026:24365](https://patchblox.com/security/data/fix/linux/rhsa-2026-24365.md) | Jun 24, 2026 |
| Linux | unbound-devel RHEL 9 | 0:1.24.2-3.el9_8.1 | [RHSA-2026:24369](https://patchblox.com/security/data/fix/linux/rhsa-2026-24369.md) | Jun 24, 2026 |
| Linux | unbound-devel almalinux 10 | 1.24.2-7.el10_2.1 | [ALSA-2026:23231](https://patchblox.com/security/data/fix/linux/alsa-2026-23231.md) | Jun 4, 2026 |
| Linux | unbound-devel almalinux 8 | 1.16.2-5.11.el8_10 | [ALSA-2026:24365](https://patchblox.com/security/data/fix/linux/alsa-2026-24365.md) | Jun 8, 2026 |
| Linux | unbound-devel almalinux 9 | 1.24.2-3.el9_8.1 | [ALSA-2026:24369](https://patchblox.com/security/data/fix/linux/alsa-2026-24369.md) | Jun 8, 2026 |
| Linux | unbound-devel amzn 2023 | 1.17.1-1.amzn2023.0.12 | [ALAS2023-2026-1756](https://patchblox.com/security/data/fix/linux/alas2023-2026-1756.md) | May 25, 2026 |
| Linux | unbound-devel ol 10 | 0:1.24.2-7.el10_2.2 | [ELSA-2026-23231](https://patchblox.com/security/data/fix/linux/elsa-2026-23231.md) | Jul 21, 2026 |
| Linux | unbound-devel ol 8 | 0:1.16.2-5.11.el8_10 | [ELSA-2026-24365](https://patchblox.com/security/data/fix/linux/elsa-2026-24365.md) | Jun 8, 2026 |
| Linux | unbound-devel ol 9 | 0:1.24.2-3.el9_8.1 | [ELSA-2026-24369](https://patchblox.com/security/data/fix/linux/elsa-2026-24369.md) | Jun 23, 2026 |
| Linux | unbound-dracut RHEL 9 | 0:1.24.2-3.el9_8.1 | [RHSA-2026:24369](https://patchblox.com/security/data/fix/linux/rhsa-2026-24369.md) | Jun 24, 2026 |
| Linux | unbound-dracut almalinux 10 | 1.24.2-7.el10_2.1 | [ALSA-2026:23231](https://patchblox.com/security/data/fix/linux/alsa-2026-23231.md) | Jun 4, 2026 |
| Linux | unbound-dracut almalinux 9 | 1.24.2-3.el9_8.1 | [ALSA-2026:24369](https://patchblox.com/security/data/fix/linux/alsa-2026-24369.md) | Jun 8, 2026 |
| Linux | unbound-dracut ol 10 | 0:1.24.2-7.el10_2.2 | [ELSA-2026-23231](https://patchblox.com/security/data/fix/linux/elsa-2026-23231.md) | Jul 21, 2026 |
| Linux | unbound-dracut ol 9 | 0:1.24.2-3.el9_8.1 | [ELSA-2026-24369](https://patchblox.com/security/data/fix/linux/elsa-2026-24369.md) | Jun 23, 2026 |
| Linux | unbound-host Ubuntu 18.04.6 LTS (bionic) | 1.6.7-1ubuntu2.6+esm4 | [unbound-host 1.6.7-1ubuntu2.6+esm4](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-unbound-host-1.6.7-1ubuntu2.6-esm4.md) | May 19, 2026 |
| Linux | unbound-host Ubuntu 20.04 LTS (focal) | 1.9.4-2ubuntu1.11+esm1 | [unbound-host 1.9.4-2ubuntu1.11+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-unbound-host-1.9.4-2ubuntu1.11-esm1.md) | May 19, 2026 |
| Linux | unbound-host Ubuntu 22.04.1 LTS (jammy) | 1.13.1-1ubuntu5.15 | [unbound-host 1.13.1-1ubuntu5.15](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-unbound-host-1.13.1-1ubuntu5.15.md) | May 27, 2026 |
| Linux | unbound-host Ubuntu 24.04.5 LTS (noble) | 1.19.2-1ubuntu3.8 | [unbound-host 1.19.2-1ubuntu3.8](https://patchblox.com/security/data/fix/linux/ubuntu-noble-unbound-host-1.19.2-1ubuntu3.8.md) | May 27, 2026 |
| Linux | unbound-host Ubuntu 25.10 (questing) | 1.22.0-2ubuntu2.3 | [unbound-host 1.22.0-2ubuntu2.3](https://patchblox.com/security/data/fix/linux/ubuntu-questing-unbound-host-1.22.0-2ubuntu2.3.md) | May 27, 2026 |
| Linux | unbound-host Ubuntu 26.04.1 LTS (resolute) | 1.24.2-1ubuntu2.1 | [unbound-host 1.24.2-1ubuntu2.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-unbound-host-1.24.2-1ubuntu2.1.md) | May 19, 2026 |
| Linux | unbound-libs RHEL 8 | 0:1.16.2-5.11.el8_10 | [RHSA-2026:24365](https://patchblox.com/security/data/fix/linux/rhsa-2026-24365.md) | Jun 24, 2026 |
| Linux | unbound-libs RHEL 9 | 0:1.24.2-3.el9_8.1 | [RHSA-2026:24369](https://patchblox.com/security/data/fix/linux/rhsa-2026-24369.md) | Jun 24, 2026 |
| Linux | unbound-libs almalinux 10 | 1.24.2-7.el10_2.1 | [ALSA-2026:23231](https://patchblox.com/security/data/fix/linux/alsa-2026-23231.md) | Jun 4, 2026 |
| Linux | unbound-libs almalinux 8 | 1.16.2-5.11.el8_10 | [ALSA-2026:24365](https://patchblox.com/security/data/fix/linux/alsa-2026-24365.md) | Jun 8, 2026 |
| Linux | unbound-libs almalinux 9 | 1.24.2-3.el9_8.1 | [ALSA-2026:24369](https://patchblox.com/security/data/fix/linux/alsa-2026-24369.md) | Jun 8, 2026 |
| Linux | unbound-libs amzn 2023 | 1.17.1-1.amzn2023.0.12 | [ALAS2023-2026-1756](https://patchblox.com/security/data/fix/linux/alas2023-2026-1756.md) | May 25, 2026 |
| Linux | unbound-libs ol 10 | 0:1.24.2-7.el10_2.2 | [ELSA-2026-23231](https://patchblox.com/security/data/fix/linux/elsa-2026-23231.md) | Jul 21, 2026 |
| Linux | unbound-libs ol 8 | 0:1.16.2-5.11.el8_10 | [ELSA-2026-24365](https://patchblox.com/security/data/fix/linux/elsa-2026-24365.md) | Jun 8, 2026 |
| Linux | unbound-libs ol 9 | 0:1.24.2-3.el9_8.1 | [ELSA-2026-24369](https://patchblox.com/security/data/fix/linux/elsa-2026-24369.md) | Jun 23, 2026 |
| Linux | unbound-libs-debuginfo amzn 2023 | 1.17.1-1.amzn2023.0.12 | [ALAS2023-2026-1756](https://patchblox.com/security/data/fix/linux/alas2023-2026-1756.md) | May 25, 2026 |
| Linux | unbound-utils almalinux 10 | 1.24.2-7.el10_2.1 | [ALSA-2026:23231](https://patchblox.com/security/data/fix/linux/alsa-2026-23231.md) | Jun 4, 2026 |
| Linux | unbound-utils amzn 2023 | 1.17.1-1.amzn2023.0.12 | [ALAS2023-2026-1756](https://patchblox.com/security/data/fix/linux/alas2023-2026-1756.md) | May 25, 2026 |
| Linux | unbound-utils ol 10 | 0:1.24.2-7.el10_2.2 | [ELSA-2026-23231](https://patchblox.com/security/data/fix/linux/elsa-2026-23231.md) | Jul 21, 2026 |
| Linux | unbound-utils-debuginfo amzn 2023 | 1.17.1-1.amzn2023.0.12 | [ALAS2023-2026-1756](https://patchblox.com/security/data/fix/linux/alas2023-2026-1756.md) | May 25, 2026 |

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Data as of 2026-11-08T13:06:02Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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