CVE-2026-35406

Name: CVE-2026-35406
Creator: NVD / NIST
Published: 2026-04-07T22:16:23.277+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 0.38%

Last modified Jun 17, 2026

CVE-2026-35406 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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. EPSS estimates a 0.38% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

0.38%

30.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Containers	Aardvark-Dns	>= 1.16.0, < 1.17.1

References

https://github.com/containers/aardvark-dns/commit/3b49ea7b38bdea134b7f03256f2e13f44ce73bb1Patch
https://github.com/containers/aardvark-dns/releases/tag/v1.17.1Release Notes
https://github.com/containers/aardvark-dns/security/advisories/GHSA-hfpq-x728-986jPatch, Vendor Advisory

Timeline

Published: Apr 7, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-35406?

How severe is CVE-2026-35406?

CVE-2026-35406 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.38% probability of exploitation in the next 30 days.

How do I fix CVE-2026-35406?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-35406?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST