The DNSSEC validation in the Hickory DNS hickory-net crate 0.26.0 before 0.26.2 identifies wraparound NSEC records by comparing the next domain name to an SOA record in the response, accepting that SOA even if it fails validation. Attackers who can supply DNS responses can combine a genuine NSEC record and its RRSIG with a crafted SOA record to forge nonexistence of any RRset.
Metrics
Affected Vendors & Products
References
History
Mon, 09 Nov 2026 17:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Hickory-dns
Hickory-dns hickory-dns |
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| Vendors & Products |
Hickory-dns
Hickory-dns hickory-dns |
Sun, 08 Nov 2026 01:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | The DNSSEC validation in the Hickory DNS hickory-net crate 0.26.0 before 0.26.2 identifies wraparound NSEC records by comparing the next domain name to an SOA record in the response, accepting that SOA even if it fails validation. Attackers who can supply DNS responses can combine a genuine NSEC record and its RRSIG with a crafted SOA record to forge nonexistence of any RRset. | |
| Title | Hickory-DNS 0.26.0 before 0.26.2 DNSSEC Nonexistence Forgery via Wraparound NSEC | |
| Weaknesses | CWE-290 | |
| References |
| |
| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: VulnCheck
Published: 2026-11-08T01:38:19.630Z
Updated: 2026-11-13T03:07:16.870Z
Reserved: 2026-11-06T00:57:31.044Z
Link: CVE-2026-123587
No data.
Status : Deferred
Published: 2026-11-08T02:16:52.637
Modified: 2026-11-13T04:17:37.780
Link: CVE-2026-123587
No data.