Pi-hole: Local privilege escalation from `pihole` user to root via `/etc/pihole/logrotate`

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-50130
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-07-14 22:17:13 UTC
Updated2026-07-16 05:16:22 UTC
DescriptionPi-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.

Risk And Classification

Primary CVSS: v3.1 8.8 HIGH from [email protected]

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

EPSS: 0.002250000 probability, percentile 0.132710000 (date 2026-07-20)

Problem Types: CWE-282 | CWE-282 CWE-282: Improper Ownership Management

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary8.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
3.1CNADECLARED8.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Pi-hole Pi-hole affected >= 6.0.0, < 6.4.3 Not specified

References

ReferenceSourceLinkTags
github.com/pi-hole/pi-hole/commit/18002bf7c6bf382fe5861d01321f427019e1be89 [email protected] github.com
github.com/pi-hole/pi-hole/releases/tag/v6.4.3 [email protected] github.com
github.com/pi-hole/pi-hole/security/advisories/GHSA-h8w9-qx2v-wrww 134c704f-9b21-4f2e-91b3-4a467353bcc0 github.com
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