CVE-2026-35518

| EUVD-2026-19685 HIGH
2026-04-07 GitHub_M
8.8
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

3
EUVD ID Assigned
Apr 07, 2026 - 15:30 euvd
EUVD-2026-19685
Analysis Generated
Apr 07, 2026 - 15:30 vuln.today
CVE Published
Apr 07, 2026 - 15:17 nvd
HIGH 8.8

Tags

RCE Command Injection

Description

FTLDNS (pihole-FTL) provides an interactive API and also generates statistics for Pi-hole's Web interface. From 6.0 to before 6.6, the Pi-hole FTL engine contains a Remote Code Execution (RCE) vulnerability in the DNS CNAME records configuration parameter (dns.cnameRecords). This vulnerability allows an authenticated attacker to inject arbitrary dnsmasq configuration directives through newline characters, ultimately achieving command execution on the underlying system. This vulnerability is fixed in 6.6.

Analysis

Remote code execution in Pi-hole FTL DNS engine versions 6.0 through 6.5 allows authenticated attackers to execute arbitrary system commands by injecting malicious dnsmasq configuration directives through newline characters in the DNS CNAME records parameter (dns.cnameRecords). Authentication requirements confirmed (CVSS PR:L - low privileges required). …

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Remediation

Within 24 hours: Identify all Pi-hole FTL installations and document versions 6.0-6.5 currently deployed. Within 7 days: Restrict administrative and configuration access to Pi-hole instances to trusted personnel only; enable multi-factor authentication if available. …

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Priority Score

44
Low Medium High Critical
KEV: 0
EPSS: +0.2
CVSS: +44
POC: 0

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CVE-2026-35518 vulnerability details – vuln.today
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