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CVE WatchNov 8, 2026

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 DnssecDnsHa

CVSS

7.5

High

EPSS

—

KEV

—

Exploit Today

—

0-100

Published: Nov 8, 2026 · Last modified: Nov 8, 2026 · CWE-835

EPSS · 30d

Not enough EPSS history yet.

Technical description

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.

Official references
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