EUVD-2026-19291

| CVE-2026-33727 MEDIUM
2026-04-06 GitHub_M
6.4
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Local
Attack Complexity
High
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

3
Analysis Generated
Apr 06, 2026 - 15:30 vuln.today
EUVD ID Assigned
Apr 06, 2026 - 15:30 euvd
EUVD-2026-19291
CVE Published
Apr 06, 2026 - 15:02 nvd
MEDIUM 6.4

Tags

Privilege Escalation RCE

Description

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.

Analysis

Pi-hole 6.4 allows local privilege escalation to root code execution via insecure sourcing of attacker-controlled content in /etc/pihole/versions by root-run scripts. A compromised low-privilege pihole account can inject malicious code that executes with root privileges, despite the pihole account using nologin shell. …

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Priority Score

32
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +32
POC: 0

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EUVD-2026-19291 vulnerability details – vuln.today
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