AIKIDO-2026-751352
hickory-net is vulnerable to DNS Spoofing
37
Low Risk
This Affects:
hickory-netTL;DR
On a client UDP connection, a response whose question section is empty (QDCOUNT of zero) skips the check that the response question matches the query. When case randomization is enabled, the matching-capitalization check is skipped as well. This removes a layer of defense in depth against off-path spoofing. The fix rejects responses that do not carry the expected question section.
Who does this affect?
You are affected if you are using a version that falls within the vulnerable range.
Background info
hickory-net is vulnerable to DNS Spoofing in versions 0.26.0 - 0.26.1.
How to fix this
Upgrade the hickory-net library to the patch version.
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