CVE-2026-123605: Security vulnerability

Published Nov 8, 2026
·
Updated

Hickory DNS hickory-proto 0.1 through 0.25.0-alpha.3 and hickory-net before 0.26.2 contain a DNSSEC validation bypass because the validator verifies an RRSIG against the DNSKEY of whatever name appears in its Signer's Name field without checking that this name is the zone containing the RRset. Attackers controlling any secure zone can produce valid signatures over arbitrary records in unrelated zones, which resolvers, recursors, and clients using DnssecDnsHandle accept as authenticated.

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade hickory-net to a version that resolves this vulnerability.

    Fixed in 0.26.2

Event History

Nov 8, 2026
CVE Published
via NVD·02:16 AM
Data Sourced
via NVD·02:16 AM
DescriptionSeverityWeakness

Contact

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