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.
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Wed, 22 Apr 2026 20:45:00 +0000

Type Values Removed Values Added
First Time appeared Powerdns
Powerdns dnsdist
Vendors & Products Powerdns
Powerdns dnsdist

Wed, 22 Apr 2026 15:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-125
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 22 Apr 2026 14:15:00 +0000

Type Values Removed Values Added
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.
Title Out-of-bounds read in service discovery
References
Metrics cvssV3_1

{'score': 3.1, 'vector': 'CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: OX

Published:

Updated: 2026-04-22T14:50:22.629Z

Reserved: 2026-03-23T12:57:56.814Z

Link: CVE-2026-33599

cve-icon Vulnrichment

Updated: 2026-04-22T14:50:08.809Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-04-22T14:16:54.410

Modified: 2026-04-22T21:23:52.620

Link: CVE-2026-33599

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-04-22T20:30:26Z

Weaknesses