Vulnerability DatabaseCVE-2026-52690
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CVE-2026-52690
Published:June 25, 2026
Updated:June 29, 2026
Spoofing replies to Recursor might mark an IP of an authoritative server as not supporting EDNS, causing valdiation of DNSSEC records served by that server to fail.
Affected Packages
https://github.com/PowerDNS/pdns.git (GITHUB):
Affected version(s) >=rec-5.3.0 <rec-5.3.8
Fix Suggestion:
Update to version rec-5.3.8
https://github.com/PowerDNS/pdns.git (GITHUB):
Affected version(s) >=rec-5.4.0 <rec-5.4.3
Fix Suggestion:
Update to version rec-5.4.3
https://github.com/PowerDNS/pdns.git (GITHUB):
Affected version(s) >=rec-5.2.0 <rec-5.2.11
Fix Suggestion:
Update to version rec-5.2.11
Related Resources (1)
https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-powerdns-2026-08.html
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CVSS v4
Base Score:
8.2
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.9
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Weakness Type (CWE)
Authentication Bypass by Spoofing
CWE-290
EPSS
Base Score:
0.35