CVE-2026-123581

NameCVE-2026-123581
DescriptionHickory DNS hickory-proto through 0.26.0-alpha.1 and hickory-net 0.26.0-beta.1 before 0.26.2 contain a DNSSEC validation flaw that accepts a response as a positive answer when any valid RRset appears in the answer section, without checking that the RRset is responsive to the query. Attackers can supply signed but unrelated RRsets so that responses lacking matching records are validated as positive answers instead of as no-data responses.
SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
rust-hickory-net (PTS)forky, sid0.26.3-1fixed
rust-hickory-proto (PTS)trixie0.24.4-2vulnerable
forky, sid0.26.3-1vulnerable

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
rust-hickory-netsource(unstable)0.26.3-1
rust-hickory-protosource(unstable)(unfixed)

Notes

https://github.com/hickory-dns/hickory-dns/security/advisories/GHSA-929p-gjf6-5hqj

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