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.
- Affected products
- Pi-Hole
- Pi-hole
- = 6.4
- Fix
- Available
- CVSS 3.1
- 6.7 MEDIUM
- EPSS
- 0.2% (12th percentile)
- Weakness
- CWE-269
- NVD status
- Analyzed
- Published
- 2026-04-06
No indexed exploits for CVE-2026-33727 yet
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