CVE-2026-33727 (GCVE-0-2026-33727)
Vulnerability from cvelistv5 – Published: 2026-04-06 15:02 – Updated: 2026-04-07 13:06
VLAI
EPSS
VEX
Title
Pi-hole has a Local Privilege Escalation (post-compromise, pihole -> root).
Summary
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.
Severity
6.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-07 03:56 UTC
CWE
- CWE-269 - Improper Privilege Management
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/pi-hole/pi-hole/security/advis… | x_refsource_CONFIRM |
Impacted products
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| Author | Source | Type | Date | Other |
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Nomenclature
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Browse all ATT&CK techniques and the vulnerabilities related to each.
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