CVE-2026-42005

MEDIUM

PowerDNS Authoritative - Insufficient Input Validation of Internal Web Server

Title source: rule

Description

An attacker can send a web request that causes unlimited memory allocation in the internal web server, leading to a denial of service. The internal web server is disabled by default.

References (1)

Core 1

Core References

https://docs.powerdns.com/authoritative/security-advisories/powerdns-advisory-powerdns-2026-07.html

Scores

CVSS v3 4.3

EPSS 0.0034

EPSS Percentile 27.0%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-400

Status published

Products (3)

PowerDNS/Authoritative 4.9.0 - 4.9.16

PowerDNS/Authoritative 5.0.0 - 5.0.6

PowerDNS/Authoritative 5.1.0 - 5.1.2

Published Jun 25, 2026

Tracked Since Jun 25, 2026