CVE-2026-52686

CVSS Score & Metrics

Base Score

3.7 / 10

Vector String

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

Vulnerability 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.

Vulnerability Details

Published Date

July 23, 2026

Last Modified

July 23, 2026

Source

NVD

Vendor

PowerDNS

Product

Recursor

External References

https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-powerdns-2026-10.html

CVSS Score & Metrics

Vulnerability Description

Vulnerability Details

External References

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