DEBIAN-CVE-2026-71193

See a problem?
Please try reporting it to the source first.
Source
https://security-tracker.debian.org/tracker/CVE-2026-71193
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-71193.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-71193
Upstream
Published
2026-08-12T23:17:22Z
Modified
2026-09-10T08:47:27Z
Severity
  • 9.6 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H CVSS Calculator
Summary
[none]
Details

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.

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-2026-71193.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-2026-71193.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-2026-71193.json"