CVE-2026-50130 | Pi-hole is a DNS sinkhole that protects devices from unwante… | CVSS 8.8 HIGH

Description

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.

Metadata

CVE ID: CVE-2026-50130
State: PUBLISHED
Assigner: GitHub_M
Reserved: 2026-06-03 18:49 UTC
Published: 2026-07-14 21:35 UTC
Last updated: 2026-07-14 21:35 UTC
Primary CWE: CWE-282
CWE-282: Improper Ownership Management
Vendor / Product: pi-hole / pi-hole
Sources: cve.org · NVD

Severity & Metrics

8.8 HIGH CVSS 3.1

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Affected products (1)

Vendor	Product	Platform	Versions
pi-hole	pi-hole	—	>= 6.0.0, < 6.4.3

Weakness (CWE)

CWE	Source	Description
CWE-282	cna	CWE-282: Improper Ownership Management

CVSS scores (1)

Score	Severity	Version	Source	Vector
8.8	HIGH	3.1	cna	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

References (3)

https://github.com/pi-hole/pi-hole/security/advisories/GHSA-h8w9-qx2v-wrww https://github.com/pi-hole/pi-hole/security/advisories/GHSA-h8w9-qx2v-wrww
https://github.com/pi-hole/pi-hole/commit/18002bf7c6bf382fe5861d01321f427019e1be89 https://github.com/pi-hole/pi-hole/commit/18002bf7c6bf382fe5861d01321f427019e1be89
https://github.com/pi-hole/pi-hole/releases/tag/v6.4.3 https://github.com/pi-hole/pi-hole/releases/tag/v6.4.3