CVE-2026-52686: Insufficient Verification of Data Authenticity in PowerDNS Recursor
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.
CVE-2026-52686: Insufficient Verification of Data Authenticity in PowerDNS Recursor
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 v3.1
Score 3.7low
Affected software
pkg:github/pdns-recursorRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- OX
- Date Reserved
- 2026-06-08T08:05:31.707Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a61d2cf9c2644c7f8b6a268
Added to database: 07/23/2026, 08:37:35 UTC
Last updated: 07/23/2026, 08:37:35 UTC
Views: 1
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