CVE-2026-52686

LowCVSS 3.7/10Last modified Oct 24, 2026

Description

The issue is a DNSSEC validation bypass where wildcard expansion proofs (NSEC/NSEC3 records) are accepted without signature validation when the wildcard answer is a CNAME or DNAME record.

Metrics

CVSS 3.1 3.7/10CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N

Weakness enumeration

CWE-347

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

No affected versions have been published.

Timeline

Published: Jul 23, 2026
Last modified: Oct 24, 2026
NVD status: Awaiting Analysis

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