Bug 2506358 (CVE-2026-52686) - CVE-2026-52686 pdns-recursor: pdns-recursor: DNSSEC validation bypass due to unsigned wildcard expansion proofs
Summary: CVE-2026-52686 pdns-recursor: pdns-recursor: DNSSEC validation bypass due to ...
Keywords:
Status: NEW
Alias: CVE-2026-52686
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2506901 2506902
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-07-23 09:01 UTC by OSIDB Bzimport
Modified: 2026-07-27 16:00 UTC (History)
0 users

Fixed In Version:
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Description OSIDB Bzimport 2026-07-23 09:01:16 UTC 
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.
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