CVE-2026-71194

Published: Ago 13, 2026 Last Modified: Ago 13, 2026

ExploitDB:

Other exploit source:

Google Dorks:

MEDIUM 6,8

Source: [email protected]

Attack Vector: network

Attack Complexity: high

Privileges Required: none

User Interaction: none

Scope: changed

Confidentiality: none

Integrity: none

Availability: high

Description

AI Translation Available

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.