CVE-2026-52688

HIGH

PowerDNS Recursor - DNSSEC Wildcard Validation Bypass

Title source: manual
STIX 2.1

Description

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

References (1)

Core 1

Scores

CVSS v3 7.5
EPSS 0.0013
EPSS Percentile 2.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-295 CWE-345
Status published
Products (3)
PowerDNS/Recursor 5.2.0 - 5.2.12
PowerDNS/Recursor 5.3.0 - 5.3.9
PowerDNS/Recursor 5.4.0 - 5.4.4
Published Jul 23, 2026
Tracked Since Jul 23, 2026