OpenStack Designate
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By the Year
In 2026 there have been 2 vulnerabilities in OpenStack Designate with an average score of 8.2 out of ten.
| Year | Vulnerabilities | Average Score |
|---|---|---|
| 2026 | 2 | 8.20 |
It may take a day or so for new Designate vulnerabilities to show up in the stats or in the list of recent security vulnerabilities. Additionally vulnerabilities may be tagged under a different product or component name.
Recent OpenStack Designate Security Vulnerabilities
OpenStack Designate mDNS Pool-Blind Lookup (before 22.0.2)
CVE-2026-71194
6.8 - Medium
- August 12, 2026
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.
Incorrect Resource Transfer Between Spheres
OpenStack Designate before 22.0.1 Cross-Tenant DNS Hijack via AttributeFilter
CVE-2026-71193
9.6 - Critical
- August 12, 2026
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.
AuthZ
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