DEBIAN-CVE-2026-71194

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Source
https://security-tracker.debian.org/tracker/CVE-2026-71194
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-71194.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-71194
Upstream
Published
2026-08-12T23:17:22Z
Modified
2026-09-10T08:47:24Z
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 _handle_notify 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

Debian:12 / designate

Package

Name
designate
Purl
pkg:deb/debian/designate?arch=source&distro=bookworm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1:15.0.2-0+deb11u1

Affected versions

1:15.*
1:15.0.0-4

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

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

Debian:13 / designate

Package

Name
designate
Purl
pkg:deb/debian/designate?arch=source&distro=trixie

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1:20.0.0-2+deb13u1

Affected versions

1:20.*
1:20.0.0-2

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

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

Debian:14 / designate

Package

Name
designate
Purl
pkg:deb/debian/designate?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1:22.0.0-2

Affected versions

1:20.*
1:20.0.0-2
1:21.*
1:21.0.0~rc1-1
1:21.0.0~rc1-2
1:21.0.0~rc1-3
1:21.0.0~rc1-4
1:21.0.0-1
1:21.0.0-2
1:22.*
1:22.0.0~rc1-1
1:22.0.0~rc1-2
1:22.0.0~rc1-3
1:22.0.0-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

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