# CVE-2026-71193: designate: In OpenStack Designate before 22.0.1, zone creation checks (_is_subzone, _is_superzone, and the duplicate-zone DB con...

CVE-2026-71193 is fixed in 13 products on 1 platform, first by designate 1:6.0.1-0ubuntu1.2+esm1, released August 12, 2026. It is not reported as exploited. Patch Radar priority: Urgent.

- Web page: https://patchblox.com/security/cve/CVE-2026-71193
- Priority: Urgent
- CVSS: 9.6 (critical)
- EPSS: 0.0053
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Aug 12, 2026

## Description

In OpenStack Designate before 22.0.1, zone creation checks (_is_subzone, _is_superzone, and the duplicate-zone DB constraint) are scoped to the target pool only. An authenticated user can bypass these checks by scheduling a zone to a different pool via the AttributeFilter scheduler, creating an overlapping zone that conflicts with another tenant's zone. This enables cross-tenant DNS hijack (redirecting traffic to attacker-controlled IPs) and DNS denial of service (NODATA responses). Exploitation requires a multi-pool deployment with AttributeFilter enabled in scheduler_filters, which is a non-default but documented and supported configuration for self-service tiering.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | designate Debian 12.15 (bookworm) | 1:15.0.2-0+deb11u1 | [DEBIAN-CVE-2026-71193](https://patchblox.com/security/data/fix/linux/debian-cve-2026-71193.md) | Aug 17, 2026 |
| Linux | designate Debian 13.5 (trixie) | 1:20.0.0-2+deb13u1 | [DEBIAN-CVE-2026-71193](https://patchblox.com/security/data/fix/linux/debian-cve-2026-71193.md) | Aug 17, 2026 |
| Linux | designate Debian 14 | 1:22.0.0-2 | [DEBIAN-CVE-2026-71193](https://patchblox.com/security/data/fix/linux/debian-cve-2026-71193.md) | Aug 17, 2026 |
| Linux | designate Ubuntu 18.04.6 LTS (bionic) | 1:6.0.1-0ubuntu1.2+esm1 | [designate 1:6.0.1-0ubuntu1.2+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-designate-1-6.0.1-0ubuntu1.2-esm1.md) | Aug 12, 2026 |
| Linux | designate Ubuntu 20.04 LTS (focal) | 1:10.0.2-0ubuntu1+esm1 | [designate 1:10.0.2-0ubuntu1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-designate-1-10.0.2-0ubuntu1-esm1.md) | Aug 12, 2026 |
| Linux | designate Ubuntu 22.04.1 LTS (jammy) | 1:14.0.4-0ubuntu1.1 | [designate 1:14.0.4-0ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-designate-1-14.0.4-0ubuntu1.1.md) | Aug 12, 2026 |
| Linux | designate Ubuntu 24.04.5 LTS (noble) | 1:18.0.0-0ubuntu1.1 | [designate 1:18.0.0-0ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-designate-1-18.0.0-0ubuntu1.1.md) | Aug 12, 2026 |
| Linux | designate Ubuntu 26.04.1 LTS (resolute) | 1:22.0.0-0ubuntu2.1 | [designate 1:22.0.0-0ubuntu2.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-designate-1-22.0.0-0ubuntu2.1.md) | Aug 12, 2026 |
| Linux | designate-agent Ubuntu 18.04.6 LTS (bionic) | 1:6.0.1-0ubuntu1.2+esm1 | [designate-agent 1:6.0.1-0ubuntu1.2+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-designate-agent-1-6.0.1-0ubuntu1.2-esm1.md) | Aug 12, 2026 |
| Linux | designate-agent Ubuntu 20.04 LTS (focal) | 1:10.0.2-0ubuntu1+esm1 | [designate-agent 1:10.0.2-0ubuntu1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-designate-agent-1-10.0.2-0ubuntu1-esm1.md) | Aug 12, 2026 |
| Linux | designate-agent Ubuntu 22.04.1 LTS (jammy) | 1:14.0.4-0ubuntu1.1 | [designate-agent 1:14.0.4-0ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-designate-agent-1-14.0.4-0ubuntu1.1.md) | Aug 12, 2026 |
| Linux | designate-agent Ubuntu 24.04.5 LTS (noble) | 1:18.0.0-0ubuntu1.1 | [designate-agent 1:18.0.0-0ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-designate-agent-1-18.0.0-0ubuntu1.1.md) | Aug 12, 2026 |
| Linux | designate-agent Ubuntu 26.04.1 LTS (resolute) | 1:22.0.0-0ubuntu2.1 | [designate-agent 1:22.0.0-0ubuntu2.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-designate-agent-1-22.0.0-0ubuntu2.1.md) | Aug 12, 2026 |
| Linux | designate-api Ubuntu 18.04.6 LTS (bionic) | 1:6.0.1-0ubuntu1.2+esm1 | [designate-api 1:6.0.1-0ubuntu1.2+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-designate-api-1-6.0.1-0ubuntu1.2-esm1.md) | Aug 12, 2026 |
| Linux | designate-api Ubuntu 20.04 LTS (focal) | 1:10.0.2-0ubuntu1+esm1 | [designate-api 1:10.0.2-0ubuntu1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-designate-api-1-10.0.2-0ubuntu1-esm1.md) | Aug 12, 2026 |
| Linux | designate-api Ubuntu 22.04.1 LTS (jammy) | 1:14.0.4-0ubuntu1.1 | [designate-api 1:14.0.4-0ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-designate-api-1-14.0.4-0ubuntu1.1.md) | Aug 12, 2026 |
| Linux | designate-api Ubuntu 24.04.5 LTS (noble) | 1:18.0.0-0ubuntu1.1 | [designate-api 1:18.0.0-0ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-designate-api-1-18.0.0-0ubuntu1.1.md) | Aug 12, 2026 |
| Linux | designate-api Ubuntu 26.04.1 LTS (resolute) | 1:22.0.0-0ubuntu2.1 | [designate-api 1:22.0.0-0ubuntu2.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-designate-api-1-22.0.0-0ubuntu2.1.md) | Aug 12, 2026 |
| Linux | designate-central Ubuntu 18.04.6 LTS (bionic) | 1:6.0.1-0ubuntu1.2+esm1 | [designate-central 1:6.0.1-0ubuntu1.2+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-designate-central-1-6.0.1-0ubuntu1.2-esm1.md) | Aug 12, 2026 |
| Linux | designate-central Ubuntu 20.04 LTS (focal) | 1:10.0.2-0ubuntu1+esm1 | [designate-central 1:10.0.2-0ubuntu1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-designate-central-1-10.0.2-0ubuntu1-esm1.md) | Aug 12, 2026 |
| Linux | designate-central Ubuntu 22.04.1 LTS (jammy) | 1:14.0.4-0ubuntu1.1 | [designate-central 1:14.0.4-0ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-designate-central-1-14.0.4-0ubuntu1.1.md) | Aug 12, 2026 |
| Linux | designate-central Ubuntu 24.04.5 LTS (noble) | 1:18.0.0-0ubuntu1.1 | [designate-central 1:18.0.0-0ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-designate-central-1-18.0.0-0ubuntu1.1.md) | Aug 12, 2026 |
| Linux | designate-central Ubuntu 26.04.1 LTS (resolute) | 1:22.0.0-0ubuntu2.1 | [designate-central 1:22.0.0-0ubuntu2.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-designate-central-1-22.0.0-0ubuntu2.1.md) | Aug 12, 2026 |
| Linux | designate-common Ubuntu 18.04.6 LTS (bionic) | 1:6.0.1-0ubuntu1.2+esm1 | [designate-common 1:6.0.1-0ubuntu1.2+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-designate-common-1-6.0.1-0ubuntu1.2-esm1.md) | Aug 12, 2026 |
| Linux | designate-common Ubuntu 20.04 LTS (focal) | 1:10.0.2-0ubuntu1+esm1 | [designate-common 1:10.0.2-0ubuntu1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-designate-common-1-10.0.2-0ubuntu1-esm1.md) | Aug 12, 2026 |
| Linux | designate-common Ubuntu 22.04.1 LTS (jammy) | 1:14.0.4-0ubuntu1.1 | [designate-common 1:14.0.4-0ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-designate-common-1-14.0.4-0ubuntu1.1.md) | Aug 12, 2026 |
| Linux | designate-common Ubuntu 24.04.5 LTS (noble) | 1:18.0.0-0ubuntu1.1 | [designate-common 1:18.0.0-0ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-designate-common-1-18.0.0-0ubuntu1.1.md) | Aug 12, 2026 |
| Linux | designate-common Ubuntu 26.04.1 LTS (resolute) | 1:22.0.0-0ubuntu2.1 | [designate-common 1:22.0.0-0ubuntu2.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-designate-common-1-22.0.0-0ubuntu2.1.md) | Aug 12, 2026 |
| Linux | designate-mdns Ubuntu 18.04.6 LTS (bionic) | 1:6.0.1-0ubuntu1.2+esm1 | [designate-mdns 1:6.0.1-0ubuntu1.2+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-designate-mdns-1-6.0.1-0ubuntu1.2-esm1.md) | Aug 12, 2026 |
| Linux | designate-mdns Ubuntu 20.04 LTS (focal) | 1:10.0.2-0ubuntu1+esm1 | [designate-mdns 1:10.0.2-0ubuntu1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-designate-mdns-1-10.0.2-0ubuntu1-esm1.md) | Aug 12, 2026 |
| Linux | designate-mdns Ubuntu 22.04.1 LTS (jammy) | 1:14.0.4-0ubuntu1.1 | [designate-mdns 1:14.0.4-0ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-designate-mdns-1-14.0.4-0ubuntu1.1.md) | Aug 12, 2026 |
| Linux | designate-mdns Ubuntu 24.04.5 LTS (noble) | 1:18.0.0-0ubuntu1.1 | [designate-mdns 1:18.0.0-0ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-designate-mdns-1-18.0.0-0ubuntu1.1.md) | Aug 12, 2026 |
| Linux | designate-mdns Ubuntu 26.04.1 LTS (resolute) | 1:22.0.0-0ubuntu2.1 | [designate-mdns 1:22.0.0-0ubuntu2.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-designate-mdns-1-22.0.0-0ubuntu2.1.md) | Aug 12, 2026 |
| Linux | designate-pool-manager Ubuntu 18.04.6 LTS (bionic) | 1:6.0.1-0ubuntu1.2+esm1 | [designate-pool-manager 1:6.0.1-0ubuntu1.2+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-designate-pool-manager-1-6.0.1-0ubuntu1.2-esm1.md) | Aug 12, 2026 |
| Linux | designate-pool-manager Ubuntu 20.04 LTS (focal) | 1:10.0.2-0ubuntu1+esm1 | [designate-pool-manager 1:10.0.2-0ubuntu1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-designate-pool-manager-1-10.0.2-0ubuntu1-esm1.md) | Aug 12, 2026 |
| Linux | designate-pool-manager Ubuntu 22.04.1 LTS (jammy) | 1:14.0.4-0ubuntu1.1 | [designate-pool-manager 1:14.0.4-0ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-designate-pool-manager-1-14.0.4-0ubuntu1.1.md) | Aug 12, 2026 |
| Linux | designate-pool-manager Ubuntu 24.04.5 LTS (noble) | 1:18.0.0-0ubuntu1.1 | [designate-pool-manager 1:18.0.0-0ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-designate-pool-manager-1-18.0.0-0ubuntu1.1.md) | Aug 12, 2026 |
| Linux | designate-pool-manager Ubuntu 26.04.1 LTS (resolute) | 1:22.0.0-0ubuntu2.1 | [designate-pool-manager 1:22.0.0-0ubuntu2.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-designate-pool-manager-1-22.0.0-0ubuntu2.1.md) | Aug 12, 2026 |
| Linux | designate-producer Ubuntu 18.04.6 LTS (bionic) | 1:6.0.1-0ubuntu1.2+esm1 | [designate-producer 1:6.0.1-0ubuntu1.2+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-designate-producer-1-6.0.1-0ubuntu1.2-esm1.md) | Aug 12, 2026 |
| Linux | designate-producer Ubuntu 20.04 LTS (focal) | 1:10.0.2-0ubuntu1+esm1 | [designate-producer 1:10.0.2-0ubuntu1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-designate-producer-1-10.0.2-0ubuntu1-esm1.md) | Aug 12, 2026 |
| Linux | designate-producer Ubuntu 22.04.1 LTS (jammy) | 1:14.0.4-0ubuntu1.1 | [designate-producer 1:14.0.4-0ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-designate-producer-1-14.0.4-0ubuntu1.1.md) | Aug 12, 2026 |
| Linux | designate-producer Ubuntu 24.04.5 LTS (noble) | 1:18.0.0-0ubuntu1.1 | [designate-producer 1:18.0.0-0ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-designate-producer-1-18.0.0-0ubuntu1.1.md) | Aug 12, 2026 |
| Linux | designate-producer Ubuntu 26.04.1 LTS (resolute) | 1:22.0.0-0ubuntu2.1 | [designate-producer 1:22.0.0-0ubuntu2.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-designate-producer-1-22.0.0-0ubuntu2.1.md) | Aug 12, 2026 |
| Linux | designate-sink Ubuntu 18.04.6 LTS (bionic) | 1:6.0.1-0ubuntu1.2+esm1 | [designate-sink 1:6.0.1-0ubuntu1.2+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-designate-sink-1-6.0.1-0ubuntu1.2-esm1.md) | Aug 12, 2026 |
| Linux | designate-sink Ubuntu 20.04 LTS (focal) | 1:10.0.2-0ubuntu1+esm1 | [designate-sink 1:10.0.2-0ubuntu1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-designate-sink-1-10.0.2-0ubuntu1-esm1.md) | Aug 12, 2026 |
| Linux | designate-sink Ubuntu 22.04.1 LTS (jammy) | 1:14.0.4-0ubuntu1.1 | [designate-sink 1:14.0.4-0ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-designate-sink-1-14.0.4-0ubuntu1.1.md) | Aug 12, 2026 |
| Linux | designate-sink Ubuntu 24.04.5 LTS (noble) | 1:18.0.0-0ubuntu1.1 | [designate-sink 1:18.0.0-0ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-designate-sink-1-18.0.0-0ubuntu1.1.md) | Aug 12, 2026 |
| Linux | designate-sink Ubuntu 26.04.1 LTS (resolute) | 1:22.0.0-0ubuntu2.1 | [designate-sink 1:22.0.0-0ubuntu2.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-designate-sink-1-22.0.0-0ubuntu2.1.md) | Aug 12, 2026 |
| Linux | designate-worker Ubuntu 18.04.6 LTS (bionic) | 1:6.0.1-0ubuntu1.2+esm1 | [designate-worker 1:6.0.1-0ubuntu1.2+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-designate-worker-1-6.0.1-0ubuntu1.2-esm1.md) | Aug 12, 2026 |
| Linux | designate-worker Ubuntu 20.04 LTS (focal) | 1:10.0.2-0ubuntu1+esm1 | [designate-worker 1:10.0.2-0ubuntu1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-designate-worker-1-10.0.2-0ubuntu1-esm1.md) | Aug 12, 2026 |
| Linux | designate-worker Ubuntu 22.04.1 LTS (jammy) | 1:14.0.4-0ubuntu1.1 | [designate-worker 1:14.0.4-0ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-designate-worker-1-14.0.4-0ubuntu1.1.md) | Aug 12, 2026 |
| Linux | designate-worker Ubuntu 24.04.5 LTS (noble) | 1:18.0.0-0ubuntu1.1 | [designate-worker 1:18.0.0-0ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-designate-worker-1-18.0.0-0ubuntu1.1.md) | Aug 12, 2026 |
| Linux | designate-worker Ubuntu 26.04.1 LTS (resolute) | 1:22.0.0-0ubuntu2.1 | [designate-worker 1:22.0.0-0ubuntu2.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-designate-worker-1-22.0.0-0ubuntu2.1.md) | Aug 12, 2026 |
| Linux | designate-zone-manager Ubuntu 18.04.6 LTS (bionic) | 1:6.0.1-0ubuntu1.2+esm1 | [designate-zone-manager 1:6.0.1-0ubuntu1.2+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-designate-zone-manager-1-6.0.1-0ubuntu1.2-esm1.md) | Aug 12, 2026 |
| Linux | designate-zone-manager Ubuntu 20.04 LTS (focal) | 1:10.0.2-0ubuntu1+esm1 | [designate-zone-manager 1:10.0.2-0ubuntu1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-designate-zone-manager-1-10.0.2-0ubuntu1-esm1.md) | Aug 12, 2026 |
| Linux | designate-zone-manager Ubuntu 22.04.1 LTS (jammy) | 1:14.0.4-0ubuntu1.1 | [designate-zone-manager 1:14.0.4-0ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-designate-zone-manager-1-14.0.4-0ubuntu1.1.md) | Aug 12, 2026 |
| Linux | designate-zone-manager Ubuntu 24.04.5 LTS (noble) | 1:18.0.0-0ubuntu1.1 | [designate-zone-manager 1:18.0.0-0ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-designate-zone-manager-1-18.0.0-0ubuntu1.1.md) | Aug 12, 2026 |
| Linux | designate-zone-manager Ubuntu 26.04.1 LTS (resolute) | 1:22.0.0-0ubuntu2.1 | [designate-zone-manager 1:22.0.0-0ubuntu2.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-designate-zone-manager-1-22.0.0-0ubuntu2.1.md) | Aug 12, 2026 |
| Linux | python-designate Ubuntu 18.04.6 LTS (bionic) | 1:6.0.1-0ubuntu1.2+esm1 | [python-designate 1:6.0.1-0ubuntu1.2+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-python-designate-1-6.0.1-0ubuntu1.2-esm1.md) | Aug 12, 2026 |
| Linux | python3-designate Ubuntu 20.04 LTS (focal) | 1:10.0.2-0ubuntu1+esm1 | [python3-designate 1:10.0.2-0ubuntu1+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-focal-python3-designate-1-10.0.2-0ubuntu1-esm1.md) | Aug 12, 2026 |
| Linux | python3-designate Ubuntu 22.04.1 LTS (jammy) | 1:14.0.4-0ubuntu1.1 | [python3-designate 1:14.0.4-0ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-python3-designate-1-14.0.4-0ubuntu1.1.md) | Aug 12, 2026 |
| Linux | python3-designate Ubuntu 24.04.5 LTS (noble) | 1:18.0.0-0ubuntu1.1 | [python3-designate 1:18.0.0-0ubuntu1.1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-python3-designate-1-18.0.0-0ubuntu1.1.md) | Aug 12, 2026 |
| Linux | python3-designate Ubuntu 26.04.1 LTS (resolute) | 1:22.0.0-0ubuntu2.1 | [python3-designate 1:22.0.0-0ubuntu2.1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-python3-designate-1-22.0.0-0ubuntu2.1.md) | Aug 12, 2026 |

---

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