Incorrect Authorization Affecting designate package, versions <1:14.0.4-0ubuntu1.1


Severity

Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.53% (42nd percentile)

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  • Snyk IDSNYK-UBUNTU2204-DESIGNATE-18760228
  • published1 Oct 2026
  • disclosed12 Aug 2026

Introduced: 12 Aug 2026

CVE-2026-71193  (opens in a new tab)
CWE-863  (opens in a new tab)

How to fix?

Upgrade Ubuntu:22.04 designate to version 1:14.0.4-0ubuntu1.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream designate package and not the designate package as distributed by Ubuntu. See How to fix? for Ubuntu:22.04 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1