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Vulnerability record · CVE-2026-35406 · published 7 April 2026

CVE-2026-35406: Containers aardvark-dns uncontrolled resource consumption vulnerability

Containers · Aardvark Dns

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.

7.5 CVSS 3.1 High EPSS 0.46% · top 63.0% CWE-400 · Uncontrolled resource consumptionCWE-835 · CWE-835
7.5CVSS 3.1 base score
0.46%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
3References
24 Jul 2026Last modified by NVD

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.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/containers/aardvark-dns/commit/3b49ea7b38bdea134b7f03256f2e13f44ce73bb1 Patch
https://github.com/containers/aardvark-dns/releases/tag/v1.17.1 Release Notes
https://github.com/containers/aardvark-dns/security/advisories/GHSA-hfpq-x728-986j PatchVendor Advisory

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Source: NIST National Vulnerability Database (record CVE-2026-35406), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.