designate: In OpenStack Designate before 22.0.2, the mDNS handler performs pool-blind lookups when resolving record queries and...
CVE-2026-71194 is fixed in designate on 1 platform, first by DEBIAN-CVE-2026-71194, released August 17, 2026. It is not reported as exploited. Patch Radar priority: Routine.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| designate · Debian 12.15 (bookworm) | 1:15.0.2-0+deb11u1 | DEBIAN-CVE-2026-71194 | Aug 17, 2026 |
| designate · Debian 13.5 (trixie) | 1:20.0.0-2+deb13u1 | DEBIAN-CVE-2026-71194 | Aug 17, 2026 |
| designate · Debian 14 | 1:22.0.0-2 | DEBIAN-CVE-2026-71194 | Aug 17, 2026 |
Patch Radar data is free to use with attribution. Terms and how to credit it.
Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.