UBUNTU-CVE-2026-71194

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Source

https://ubuntu.com/security/CVE-2026-71194

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-71194.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-71194

Upstream

CVE-2026-71194

Published

2026-08-13T00:00:00Z

Modified

2026-08-13T19:30:58.016978469Z

Severity

6.8 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H CVSS Calculator
Ubuntu - medium

Summary

[none]

Details

In OpenStack Designate before 22.0.2, the mDNS handler performs pool-blind lookups when resolving record queries and NOTIFY requests. When two zones with the same name exist across different pools, the lookup fails with a deterministic error, causing the handler to return REFUSED for all DNS queries through that path. The handlenotify path is exploitable via a single unauthenticated UDP packet. This is independently reachable through the cross-tenant zone overlap described in a different recent CVE, and also affects legitimate same-tenant cross-pool configurations. BIND9 views do not mitigate this issue as mDNS is a shared service upstream of any view configuration.

References

Affected packages

Ubuntu:16.04:LTS

designate

Package

Name: designate
Purl: pkg:deb/ubuntu/designate?arch=source&distro=xenial

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

1:1.*

1:1.0.0-0ubuntu1

1:2.*

1:2.0.0~b1-0ubuntu1

1:2.0.0~b2-0ubuntu1

1:2.0.0~b2-0ubuntu2

1:2.0.0~b3-0ubuntu1

1:2.0.0~b3-0ubuntu2

1:2.0.0~rc1-0ubuntu1

1:2.0.0-0ubuntu1

1:2.1.0-0ubuntu1

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "1:2.1.0-0ubuntu1",
            "binary_name": "designate"
        },
        {
            "binary_version": "1:2.1.0-0ubuntu1",
            "binary_name": "designate-agent"
        },
        {
            "binary_version": "1:2.1.0-0ubuntu1",
            "binary_name": "designate-api"
        },
        {
            "binary_version": "1:2.1.0-0ubuntu1",
            "binary_name": "designate-central"
        },
        {
            "binary_version": "1:2.1.0-0ubuntu1",
            "binary_name": "designate-common"
        },
        {
            "binary_version": "1:2.1.0-0ubuntu1",
            "binary_name": "designate-mdns"
        },
        {
            "binary_version": "1:2.1.0-0ubuntu1",
            "binary_name": "designate-pool-manager"
        },
        {
            "binary_version": "1:2.1.0-0ubuntu1",
            "binary_name": "designate-sink"
        },
        {
            "binary_version": "1:2.1.0-0ubuntu1",
            "binary_name": "designate-zone-manager"
        },
        {
            "binary_version": "1:2.1.0-0ubuntu1",
            "binary_name": "python-designate"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-71194.json"

Ubuntu:18.04:LTS

designate

Package

Name: designate
Purl: pkg:deb/ubuntu/designate?arch=source&distro=bionic

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

1:5.*

1:5.0.0-0ubuntu1

1:6.*

1:6.0.0~b1-0ubuntu1

1:6.0.0~b1-0ubuntu2

1:6.0.0~b2-0ubuntu1

1:6.0.0~b3-0ubuntu1

1:6.0.0~rc1-0ubuntu1

1:6.0.0-0ubuntu1

1:6.0.1-0ubuntu1

1:6.0.1-0ubuntu1.2

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "1:6.0.1-0ubuntu1.2",
            "binary_name": "designate"
        },
        {
            "binary_version": "1:6.0.1-0ubuntu1.2",
            "binary_name": "designate-agent"
        },
        {
            "binary_version": "1:6.0.1-0ubuntu1.2",
            "binary_name": "designate-api"
        },
        {
            "binary_version": "1:6.0.1-0ubuntu1.2",
            "binary_name": "designate-central"
        },
        {
            "binary_version": "1:6.0.1-0ubuntu1.2",
            "binary_name": "designate-common"
        },
        {
            "binary_version": "1:6.0.1-0ubuntu1.2",
            "binary_name": "designate-mdns"
        },
        {
            "binary_version": "1:6.0.1-0ubuntu1.2",
            "binary_name": "designate-pool-manager"
        },
        {
            "binary_version": "1:6.0.1-0ubuntu1.2",
            "binary_name": "designate-producer"
        },
        {
            "binary_version": "1:6.0.1-0ubuntu1.2",
            "binary_name": "designate-sink"
        },
        {
            "binary_version": "1:6.0.1-0ubuntu1.2",
            "binary_name": "designate-worker"
        },
        {
            "binary_version": "1:6.0.1-0ubuntu1.2",
            "binary_name": "designate-zone-manager"
        },
        {
            "binary_version": "1:6.0.1-0ubuntu1.2",
            "binary_name": "python-designate"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-71194.json"

Ubuntu:20.04:LTS

designate

Package

Name: designate
Purl: pkg:deb/ubuntu/designate?arch=source&distro=focal

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

1:9.*

1:9.0.0-0ubuntu1

1:10.*

1:10.0.0~b1~git2019121610.cdac0fc2-0ubuntu1

1:10.0.0~b1~git2019121610.cdac0fc2-0ubuntu2

1:10.0.0~b2~git2020021416.8b5ec128-0ubuntu2

1:10.0.0~b3~git2020032414.dd359ba3-0ubuntu1

1:10.0.0~b3~git2020041012.9ed2623a-0ubuntu1

1:10.0.0-0ubuntu0.20.04.1

1:10.0.1-0ubuntu1

1:10.0.2-0ubuntu1

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "1:10.0.2-0ubuntu1",
            "binary_name": "designate"
        },
        {
            "binary_version": "1:10.0.2-0ubuntu1",
            "binary_name": "designate-agent"
        },
        {
            "binary_version": "1:10.0.2-0ubuntu1",
            "binary_name": "designate-api"
        },
        {
            "binary_version": "1:10.0.2-0ubuntu1",
            "binary_name": "designate-central"
        },
        {
            "binary_version": "1:10.0.2-0ubuntu1",
            "binary_name": "designate-common"
        },
        {
            "binary_version": "1:10.0.2-0ubuntu1",
            "binary_name": "designate-mdns"
        },
        {
            "binary_version": "1:10.0.2-0ubuntu1",
            "binary_name": "designate-pool-manager"
        },
        {
            "binary_version": "1:10.0.2-0ubuntu1",
            "binary_name": "designate-producer"
        },
        {
            "binary_version": "1:10.0.2-0ubuntu1",
            "binary_name": "designate-sink"
        },
        {
            "binary_version": "1:10.0.2-0ubuntu1",
            "binary_name": "designate-worker"
        },
        {
            "binary_version": "1:10.0.2-0ubuntu1",
            "binary_name": "designate-zone-manager"
        },
        {
            "binary_version": "1:10.0.2-0ubuntu1",
            "binary_name": "python3-designate"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-71194.json"

Ubuntu:22.04:LTS

designate

Package

Name: designate
Purl: pkg:deb/ubuntu/designate?arch=source&distro=jammy

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

1:13.*

1:13.0.0-0ubuntu1

1:13.0.0+git2021120810.aa798fc0-0ubuntu1

1:13.0.0+git2022011215.bff3d5f6-0ubuntu1

1:13.0.0+git2022030310.8ce022a7-0ubuntu1

1:14.*

1:14.0.0-0ubuntu1

1:14.0.1-0ubuntu1

1:14.0.2-0ubuntu1

1:14.0.3-0ubuntu1

1:14.0.4-0ubuntu1

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "1:14.0.4-0ubuntu1",
            "binary_name": "designate"
        },
        {
            "binary_version": "1:14.0.4-0ubuntu1",
            "binary_name": "designate-agent"
        },
        {
            "binary_version": "1:14.0.4-0ubuntu1",
            "binary_name": "designate-api"
        },
        {
            "binary_version": "1:14.0.4-0ubuntu1",
            "binary_name": "designate-central"
        },
        {
            "binary_version": "1:14.0.4-0ubuntu1",
            "binary_name": "designate-common"
        },
        {
            "binary_version": "1:14.0.4-0ubuntu1",
            "binary_name": "designate-mdns"
        },
        {
            "binary_version": "1:14.0.4-0ubuntu1",
            "binary_name": "designate-pool-manager"
        },
        {
            "binary_version": "1:14.0.4-0ubuntu1",
            "binary_name": "designate-producer"
        },
        {
            "binary_version": "1:14.0.4-0ubuntu1",
            "binary_name": "designate-sink"
        },
        {
            "binary_version": "1:14.0.4-0ubuntu1",
            "binary_name": "designate-worker"
        },
        {
            "binary_version": "1:14.0.4-0ubuntu1",
            "binary_name": "designate-zone-manager"
        },
        {
            "binary_version": "1:14.0.4-0ubuntu1",
            "binary_name": "python3-designate"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-71194.json"

Ubuntu:24.04:LTS

designate

Package

Name: designate
Purl: pkg:deb/ubuntu/designate?arch=source&distro=noble

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

1:17.*

1:17.0.0-0ubuntu2

1:17.0.1+git2023121308.d90691f3-0ubuntu1

1:17.0.1+git2024011916.002005a4-0ubuntu2

1:18.*

1:18.0.0~rc1-0ubuntu1

1:18.0.0-0ubuntu1

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "1:18.0.0-0ubuntu1",
            "binary_name": "designate"
        },
        {
            "binary_version": "1:18.0.0-0ubuntu1",
            "binary_name": "designate-agent"
        },
        {
            "binary_version": "1:18.0.0-0ubuntu1",
            "binary_name": "designate-api"
        },
        {
            "binary_version": "1:18.0.0-0ubuntu1",
            "binary_name": "designate-central"
        },
        {
            "binary_version": "1:18.0.0-0ubuntu1",
            "binary_name": "designate-common"
        },
        {
            "binary_version": "1:18.0.0-0ubuntu1",
            "binary_name": "designate-mdns"
        },
        {
            "binary_version": "1:18.0.0-0ubuntu1",
            "binary_name": "designate-pool-manager"
        },
        {
            "binary_version": "1:18.0.0-0ubuntu1",
            "binary_name": "designate-producer"
        },
        {
            "binary_version": "1:18.0.0-0ubuntu1",
            "binary_name": "designate-sink"
        },
        {
            "binary_version": "1:18.0.0-0ubuntu1",
            "binary_name": "designate-worker"
        },
        {
            "binary_version": "1:18.0.0-0ubuntu1",
            "binary_name": "designate-zone-manager"
        },
        {
            "binary_version": "1:18.0.0-0ubuntu1",
            "binary_name": "python3-designate"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-71194.json"

Ubuntu:26.04:LTS

designate

Package

Name: designate
Purl: pkg:deb/ubuntu/designate?arch=source&distro=resolute

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

1:21.*

1:21.0.0-0ubuntu1

1:21.0.0-0ubuntu2

1:21.0.0+git20260121.19.145042f4-0ubuntu1

1:22.*

1:22.0.0~rc1-0ubuntu1

1:22.0.0-0ubuntu1

1:22.0.0-0ubuntu2

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "1:22.0.0-0ubuntu2",
            "binary_name": "designate"
        },
        {
            "binary_version": "1:22.0.0-0ubuntu2",
            "binary_name": "designate-agent"
        },
        {
            "binary_version": "1:22.0.0-0ubuntu2",
            "binary_name": "designate-api"
        },
        {
            "binary_version": "1:22.0.0-0ubuntu2",
            "binary_name": "designate-central"
        },
        {
            "binary_version": "1:22.0.0-0ubuntu2",
            "binary_name": "designate-common"
        },
        {
            "binary_version": "1:22.0.0-0ubuntu2",
            "binary_name": "designate-mdns"
        },
        {
            "binary_version": "1:22.0.0-0ubuntu2",
            "binary_name": "designate-pool-manager"
        },
        {
            "binary_version": "1:22.0.0-0ubuntu2",
            "binary_name": "designate-producer"
        },
        {
            "binary_version": "1:22.0.0-0ubuntu2",
            "binary_name": "designate-sink"
        },
        {
            "binary_version": "1:22.0.0-0ubuntu2",
            "binary_name": "designate-worker"
        },
        {
            "binary_version": "1:22.0.0-0ubuntu2",
            "binary_name": "designate-zone-manager"
        },
        {
            "binary_version": "1:22.0.0-0ubuntu2",
            "binary_name": "python3-designate"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-71194.json"