CVE-2026-35406 Details
Description
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.
A denial-of-service vulnerability has been identified in Aardvark-DNS versions 1.16.0 through 1.17.0. The issue arises when the server receives a truncated TCP DNS query followed by a connection reset, causing Aardvark-DNS to enter an infinite error loop, consuming 100% CPU. This flaw can lead to a significant disruption of service.
Users can upgrade to Aardvark-DNS version 1.17.1, which addresses this vulnerability by improving the handling of incorrect TCP packets. The updated version can be downloaded from the Aardvark-DNS GitHub Releases page.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Apr 8, 2026References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-835 | Loop with Unreachable Exit Condition ('Infinite Loop') | [email protected] |
| CWE-400 | Uncontrolled Resource Consumption | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| containers aardvark-dns | >= 1.16.0, < 1.17.1 |
CPE
Remediation
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Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 24, 2026 | CVE Translated | [email protected] |
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 16, 2026 | Initial Analysis | [email protected] |
| Apr 7, 2026 | New CVE Received | [email protected] |