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 Details
- CVSS 3.1 Base Score: 3.7
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade pdns-recursor | Jul 29, 2026 | Jul 23, 2026 |
| Debian | — | Upgrade pdns-recursor | Jul 28, 2026 | Jul 28, 2026 |
| Freebsd | — | Upgrade powerdns-recursor | Aug 7, 2026 | Aug 5, 2026 |
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