PT-2026-30866 · Pi-Hole · Ftl

Published 2026-04-07 · Updated 2026-04-07 · CVE-2026-35518

NVD

CVSS v3.1

8.8

High

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

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.

Fix

OS Command Injection

Weakness Enumeration

CWE-93

CWE-78

Related Identifiers

CVE-2026-35518

Affected Products

Ftl

References · 2

• https://nvd.nist.gov/vuln/detail/CVE-2026-35518 · Security Note
• https://github.com/pi-hole/FTL/security/advisories/GHSA-28g5-gg88-wh5m · Note