CVE-2026-71194

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Source
https://cve.org/CVERecord?id=CVE-2026-71194
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-71194.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-71194
Downstream
Published
2026-08-12T22:23:46.951Z
Modified
2026-08-15T11:30:56.259377998Z
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
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.

Database specific 
{
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "introduced": "22.0.0"
                },
                {
                    "fixed": "22.0.2"
                }
            ],
            "source": "AFFECTED_FIELD"
        }
    ],
    "cna_assigner": "mitre",
    "cwe_ids": [
        "CWE-669"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/71xxx/CVE-2026-71194.json"
}
References

Affected packages

Git / opendev.org/openstack/designate

Affected ranges

Type
GIT
Repo
https://opendev.org/openstack/designate
Events
Introduced
bfe79196c9557559f351ae9a854c73ac757051ee
Fixed
b5255cf54363bdb0775b51cc0fbf38eeb28aecae
Introduced
035453ffd1ba0f574a1d7f23b458222c0fd8fc68
Fixed
2ee5e4a00bc632283a4b5c5da1a94d8f184d1272
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "1.0.0"
        },
        {
            "fixed": "20.0.2"
        },
        {
            "introduced": "21.0.0"
        },
        {
            "fixed": "21.0.1"
        }
    ],
    "source": "AFFECTED_FIELD"
}

Affected versions

21.*
21.0.0
21.0.0.0rc1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-71194.json"