Protection Mechanism Failure Affecting github.com/tinfoil-factory/netfoil/dns package, versions <0.4.0


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

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  • Snyk IDSNYK-GOLANG-GITHUBCOMTINFOILFACTORYNETFOILDNS-19427359
  • published29 Aug 2026
  • disclosed29 Jul 2026
  • creditUnknown

Introduced: 29 Jul 2026

CVE NOT AVAILABLE CWE-693  (opens in a new tab)

How to fix?

Upgrade github.com/tinfoil-factory/netfoil/dns to version 0.4.0 or higher.

Overview

Affected versions of this package are vulnerable to Protection Mechanism Failure due to the use of 0.0.0.0 instead of NXDOMAIN in block responses. An attacker can cause unintended network traffic to be sent to localhost by triggering blocked DNS queries.

CVSS Base Scores

version 4.0
version 3.1