CVE-2026-52686
Last modified
CVE-2026-52686 is a low-severity vulnerability rated 3.7/10 on the CVSS scale. 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.. EPSS estimates a 0.26% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| PowerDNS | Recursor | >= 5.2.0, < 5.2.12; >= 5.3.0, < 5.3.9; >= 5.4.0, < 5.4.4 |
References
Timeline
- Published
- Last Modified
- Status
- Awaiting Analysis
Frequently Asked Questions
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