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CVE-2026-33599

LOW CVSS: 3.1 Published: 2026-04-22 Modified: 2026-06-17

Description

A rogue backend can send a crafted SVCB response to a Discovery of Designated Resolvers request, when requested via either the autoUpgrade (Lua) option to newServer or auto_upgrade (YAML) settings. DDR upgrade is not enabled by default.

Affected Platforms

Powerdns Dnsdist

Weakness Type

CWE-125

References