CVE-2026-41489 Pi-hole: Local privilege escalation via config-controlled path in root-executed service hooks

Pi-hole is a DNS sinkhole that protects devices from unwanted content without installing any client-side software. From 6.0 to before Core 6.4.2 and FTL 6.6.1, two shell scripts executed as root by systemd pihole-FTL-prestart.sh and pihole-FTL-poststop.sh read the files.pid path from this config...

CVE-2026-41489

Pi-hole (6.0 through before Core 6.4.2 and FTL 6.6.1) is vulnerable because two systemd-executed root scripts (pihole-FTL-prestart.sh and pihole-FTL-poststop.sh) read the files.pid path from a config without validation and perform privileged file operations using that path. An attacker with pihol...