MEDIUM 6.3 NVD
CVE-2026-123590
Hickory DNS hickory-net 0.26.0-beta.1 before 0.26.2 and hickory-proto through 0.26.0-alpha.1 accept NSEC and NSEC3 records for DNSSEC nonexistence proofs when a
Hickory DNS hickory-net 0.26.0-beta.1 before 0.26.2 and hickory-proto through 0.26.0-alpha.1 accept NSEC and NSEC3 records for DNSSEC nonexistence proofs when any other record with the same owner name passes signature validation. Attackers able to supply DNS responses can mix validly signed records with bogus same-name NSEC or NSEC3 records of different types in the authority section to forge nonexistence proofs.
References
- https://github.com/hickory-dns/hickory-dns/security/advisories/GHSA-57pw-897j-v4j6
- https://www.vulncheck.com/advisories/hickory-dns-0.26.0-beta.1-before-0.26.2-improper-nsec
This medium severity vulnerability with a CVSS score of 6.3 was published on 2026-11-08 via NVD.
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