HIGH 8.7 NVD
CVE-2026-123607
Hickory DNS hickory-proto 0.25.0-alpha.3 through 0.25.2 and hickory-net before 0.26.1 contain an unbounded loop vulnerability in DnssecDnsHandle NSEC3 closest-e
Hickory DNS hickory-proto 0.25.0-alpha.3 through 0.25.2 and hickory-net before 0.26.1 contain an unbounded loop vulnerability in DnssecDnsHandle NSEC3 closest-encloser proof validation when the SOA owner is not an ancestor of the QNAME. Upstream attackers can return NoData or NXDomain responses with a cross-zone SOA record to panic debug builds or exhaust memory in release builds.
References
- https://github.com/hickory-dns/hickory-dns/security/advisories/GHSA-3v94-mw7p-v465
- https://www.vulncheck.com/advisories/hickory-dns-nsec3-closest-encloser-proof-unbounded-lo
This high severity vulnerability with a CVSS score of 8.7 was published on 2026-11-08 via NVD.
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