CVE-2026-52686

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.

CVSS Vector

References

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