{"id":"CVE-2026-50130","summary":"Pi-hole: Local privilege escalation from `pihole` user to root via `/etc/pihole/logrotate`","details":"Pi-hole is a DNS sinkhole that protects devices from unwanted content without installing any client-side software. From 6.0 to 6.4.2, a user with code execution as the unprivileged pihole user can escalate to root by replacing /etc/pihole/logrotate. The replacement is laundered to root:root ownership by pihole-FTL-prestart.sh and then parsed as root by the daily pihole flush cron, executing firstaction shell as uid 0. This issue is fixed in version 6.4.3.","aliases":["GHSA-h8w9-qx2v-wrww"],"modified":"2026-08-12T03:51:35.879569632Z","published":"2026-07-14T21:35:00.813Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/50xxx/CVE-2026-50130.json","cna_assigner":"GitHub_M","cwe_ids":["CWE-282"]},"references":[{"type":"WEB","url":"https://github.com/pi-hole/pi-hole/releases/tag/v6.4.3"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/50xxx/CVE-2026-50130.json"},{"type":"ADVISORY","url":"https://github.com/pi-hole/pi-hole/security/advisories/GHSA-h8w9-qx2v-wrww"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-50130"},{"type":"FIX","url":"https://github.com/pi-hole/pi-hole/commit/18002bf7c6bf382fe5861d01321f427019e1be89"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/pi-hole/pi-hole","events":[{"introduced":"2d81552f9f16fb5e12df31069078b43f0e826c3b"},{"fixed":"f47b8ede5a8e38f9c703202d324a074dbdba4ca9"},{"fixed":"18002bf7c6bf382fe5861d01321f427019e1be89"}],"database_specific":{"source":["CPE_RANGE","REFERENCES"],"cpe":"cpe:2.3:a:pi-hole:pi-hole:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"6.0"},{"fixed":"6.4.3"}]}}],"versions":["v6.4.2","v6.4.1","v6.4","v6.3","v6.2.2","v6.2.1","v6.2","v6.1.4","v6.1.3","v6.1.2","v6.1","v6.0.6","v6.0.5","v6.0.4","v6.0.3","v6.0.1","v6.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-50130.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"}]}