PT-2026-30655 · Pi-Hole · Pi-Hole

Smittix · CVE-2026-33727 · Published 2026-04-06 · Updated 2026-04-06

Positive Technologies (AI Summary)

CVSS v3.1

6.7

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Pi-hole version 6.4

Description A local privilege-escalation issue allows code execution as root from the low-privilege pihole account. While the pihole account uses nologin, which prevents direct interactive login, code can still run under the pihole UID if a component is compromised. In such a scenario, an attacker can place controlled content in the /etc/pihole/versions file, which is then sourced by scripts running with root privileges, resulting in root code execution.

Recommendations Update Pi-hole to version 6.4.1.

Exploit

Fix

Improper Privilege Management

Weakness Enumeration

CWE-269

Related Identifiers

CVE-2026-33727

GHSA-C935-8G63-QP74

Affected Products

Pi-Hole

References · 4

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33727.json · Exploit
• https://github.com/pi-hole/pi-hole/security/advisories/GHSA-c935-8g63-qp74 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2026-33727 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-33727 · Security Note