CVE-2026-52688

RRSIGs with too few labels can lead to bypass of DNSSEC wildcard validation

Published Jul 23, 2026 CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Description
RRSIGs with too few labels can lead to bypass of DNSSEC wildcard validation

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DSA Debian DSA DSA-6397-1 pdns-recursor security update
History
Type Values Removed Values Added
Weaknesses CWE-295
CWE-345
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Powerdns
Powerdns recursor
Vendors & Products Powerdns
Powerdns recursor
Type Values Removed Values Added
Description RRSIGs with too few labels can lead to bypass of DNSSEC wildcard validation
Title RRSIGs with too few labels can lead to bypass of DNSSEC wildcard validation
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
OX
Published
Updated
Jul 23, 2026, 1:56 PM
Reserved
Jun 8, 2026, 8:05 AM
Status
Awaiting Analysis
Published
Jul 23, 2026, 9:16 AM
Modified
Oct 24, 2026, 1:10 PM