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VulnerabilityPublished

CVE-2026-35406: containers aardvark-dns · Uncontrolled Resource Consumption

Affects containers aardvark-dnsSource CVE Database V5

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Not known to be exploited · CVSS 6.2 Medium : upgrade to 1.17.1 when convenient.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 3.1 base score
6.2Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.3% chance of exploitation in 30 days – higher than 32% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 1.17.1
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 7 Apr 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

What to do

Upgrade aardvark-dns and containers/aardvark-dns to 1.17.1.

Affected software

ProductAffectedFixed in
containersaardvark-dnsAffected
  • >=1.16.0 <1.17.1
Fixed in
  • 1.17.1
GitHubcontainers/aardvark-dnspkg:github/containers/aardvark-dnsOther threatsAffected
  • <1.17.1 >=1.16.0
Fixed in
  • 1.17.1

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Upgrade aardvark-dns to version 1.17.1 or later where this vulnerability is fixed. Patch status is confirmed by the version information in the description. No other mitigation steps are indicated.

Description

CVE-2026-35406 is a medium severity vulnerability in aardvark-dns versions 1.16.0 through 1.17.0. It involves uncontrolled resource consumption where a truncated TCP DNS query followed by a connection reset causes the server to enter an unrecoverable infinite error loop at 100% CPU usage. This results in a denial of service condition. The issue is fixed in version 1.17.1.

References

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