Incorrect Authorization Affecting openstack-designate-agent package, versions *


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.53% (42nd percentile)

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  • Snyk IDSNYK-RHEL10-OPENSTACKDESIGNATEAGENT-18889876
  • published18 Aug 2026
  • disclosed11 Aug 2026

Introduced: 11 Aug 2026

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

How to fix?

There is no fixed version for RHEL:10 openstack-designate-agent.

NVD Description

Note: Versions mentioned in the description apply only to the upstream openstack-designate-agent package and not the openstack-designate-agent package as distributed by RHEL. See How to fix? for RHEL:10 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