CVE-2026-52686
3.7
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| PowerDNS | Recursor | 5.2.0 < 5.2.12 | affected |
| PowerDNS | Recursor | 5.3.0 < 5.3.9 | affected |
| PowerDNS | Recursor | 5.4.0 < 5.4.4 | affected |
Weaknesses
- Insufficient Verification of Data Authenticity
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
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