CVE-2026-33727

Pi-hole is a Linux network-level advertisement and Internet tracker blocking application. Version 6.4 has a local privilege-escalation vulnerability allows code execution as root from the low-privilege pihole account. Important context: the pihole account uses nologin, so this is not a direct interactive-login issue. However, nologin does not prevent code from running as UID pihole if a Pi-hole component is compromised. In that realistic post-compromise scenario, attacker-controlled content in /etc/pihole/versions is sourced by root-run Pi-hole scripts, leading to root code execution. This vulnerability is fixed in 6.4.1.

CVSS v3 6.4 MEDIUM

6.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 0.5 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required HIGH

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/pi-hole/pi-hole/security/advisories/GHSA-c935-8g63-qp74	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:pi-hole:pi-hole:6.4:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-04-06 16:16

Updated : 2026-06-17 10:37

NVD link : CVE-2026-33727

Mitre link : CVE-2026-33727

CVE.ORG link : CVE-2026-33727

JSON object : View

Products Affected

pi-hole

pi-hole

CWE

CWE-269

Improper Privilege Management

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