Insufficient Validation in PowerDNS Autoprimary SOA Queries
CVE-2026-42001

7.5HIGH

Key Information:

Vendor

Powerdns

Status
Authoritative
Vendor
CVE Published:
21 May 2026

What is CVE-2026-42001?

This vulnerability involves a flaw in the PowerDNS Authoritative Server that permits insufficient validation of Autoprimary SOA queries. This incorrectly handled input could potentially allow an attacker to manipulate DNS responses, leading to information exposure or redirection attacks. System administrators are advised to review the impacted product versions and apply necessary patches to mitigate potential security risks.

Affected Version(s)

Authoritative 4.9.0 < 4.9.15

Authoritative 5.0.0 < 5.0.5

References

https://docs.powerdns.com/authoritative/security-advisori...

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

lazarux0x1337
.