Security Advisory

CVE-2026-35518

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2026-04-07 15:17:39

Last updated 2026-04-08 14:55:05

Assigner GitHub_M

State PUBLISHED

Description

FTLDNS (pihole-FTL) provides an interactive API and also generates statistics for Pi-holes 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.

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