{"id":"CVE-2026-119335","published":"2026-10-30T20:17:08.137","lastModified":"2026-10-30T20:17:08.137","description":"Pi-hole is a DNS sinkhole that protects devices from unwanted content without installing any client-side software. Prior to 6.5, advanced/Scripts/utils.sh getFTLPID() attempts to validate the pihole-owned /run/pihole-FTL.pid file with expr \"${FTL_PID}\" : \"[^[:digit:]]\", but this rejects only values whose first character is not a digit. An attacker with code execution as the pihole user can write a digit-prefixed arithmetic expression to the pihole-owned PID file. Root-run pihole subcommands then evaluate [[ \"$pid\" -eq \"-1\" ]], causing Bash to recursively evaluate array subscripts and execute command substitution as root. This bypasses the content-validation portion of the CVE-2026-41489 remediation while leaving its hardcoded PID-file path protection intact. This issue is fixed in version 6.5.","cvssScore":7.8,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cwes":["CWE-78"],"vendors":[],"products":[],"references":[{"url":"https://github.com/pi-hole/pi-hole/commit/555dd4d8b3699327fbba482bb73cce5f53979bd1","tags":[]},{"url":"https://github.com/pi-hole/pi-hole/pull/6719","tags":[]},{"url":"https://github.com/pi-hole/pi-hole/releases/tag/v6.5","tags":[]},{"url":"https://github.com/pi-hole/pi-hole/security/advisories/GHSA-cf36-4hhc-8398","tags":[]}],"exploitRefs":[{"url":"https://github.com/pi-hole/pi-hole/commit/555dd4d8b3699327fbba482bb73cce5f53979bd1","tags":[]},{"url":"https://github.com/pi-hole/pi-hole/pull/6719","tags":[]},{"url":"https://github.com/pi-hole/pi-hole/releases/tag/v6.5","tags":[]},{"url":"https://github.com/pi-hole/pi-hole/security/advisories/GHSA-cf36-4hhc-8398","tags":[]}],"hasPoc":true,"ai":null}