DNSSEC validation accepted an unrelated signed RRset as the answer (hickory-proto)

Up to 0.26.0-alpha.1, hickory-proto's DNSSEC validation treated a response with a non-empty answer section as a positive answer if its records validated, without checking that any of them matched the queried name and type. Someone who can answer or modify DNS responses could return a genuine signed RRset for another name or type and have it accepted as a validated answer. From 0.26.0-beta.1 the DNSSEC validation code lives in the hickory-net crate, where this was fixed in hickory-net 0.26.2. No hickory-proto release contains a fix. Users of DNSSEC validation in older hickory-proto releases (directly or through hickory-resolver or hickory-recursor) should move to the 0.26.2 or later releases, which validate through hickory-net.

Source published

3 Sep 2026 12:00:00 UTC

Source modified

12 Nov 2026 14:40:54 UTC

Saved here

12 Nov 2026 15:18:33 UTC

Source terms

OSV · upstream source license applies

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CVSS_V3 · CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N