CVE-2026-35406 MEDIUM

CVE-2026-35406: Aardvark-dns has incorrect error handling for malformed tcp packets

Vendor Containers
Product aardvark-dns
Weakness CWE-400
Published April 7, 2026
Last update April 8, 2026
View on NVD All CVEs

CVSS base score

6.2/10
Attack vector Local
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity None

CVSS vector

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

What the vulnerability does

01Description

Aardvark-dns is an authoritative dns server for A/AAAA container records. From 1.16.0 to 1.17.0, a truncated TCP DNS query followed by a connection reset causes aardvark-dns to enter an unrecoverable infinite error loop at 100% CPU. This vulnerability is fixed in 1.17.1.

Key dates

02Disclosure timeline

April 7, 2026 CVE published
April 8, 2026 Record updated