CVE-2026-33727CWE-269

Pi-hole has a Local Privilege Escalation (post-compromise, pihole -> root).

Medium · published April 6, 2026

CVSS v3.1
6.4
EPSS
0%
Percentile
9.5
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.4 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00201 · 9.5th percentile
Weakness
CWE-269 · Improper Privilege Management
Published
2026-04-06T15:02Z
EPSS history
Timeline
  • 06 APR 15:02Z
    Pi-hole has a Local Privilege Escalation (post-compromise, pihole -> root).
    cvelistv5