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.

Related CPE's

a

powerdns

dnsdist

2

References

https://www.dnsdist.org/security-advisories/powerdns-advisory-for-dnsdist-2026-04.html

Vendor Advisory

Weaknesses

134c704f-9b21-4f2e-91b3-4a467353bcc0

Secondary
CWE-125

CVSS impact metrics

CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

3.1 · Low

Information

Source identifier

[email protected]

Vulnerability status

Analyzed

Published

2026-04-22T14:16:54.410Z

5 months ago

Last modified

2026-06-17T10:37:46.110Z

3 months ago