Vulnerability Details CVE-2026-35517
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 upstream DNS servers configuration parameter (dns.upstreams). 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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 22.7%
CVSS Severity
CVSS v3 Score 8.8