CVE-2026-33727: medium-severity vulnerability in pi-hole
Pi-hole has a Local Privilege Escalation (post-compromise, pihole -> root).
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.4epss 0.2%
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.
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Affected products
pi-hole · pi-holeRelated CVEs — pi-hole
In the same product, most dangerous first.
CVE-2024-34361HIGHPi-hole Blind Server-Side Request Forgery (SSRF) vulnerability can lead to Remote Code Execution (RCE)EPSS 2.8%CVE-2021-29449MEDIUMMultiple Privilege Escalation Vulnerabilities PiholeEPSS 1.8%CVE-2024-28247HIGHPihole Authenticated Arbitrary File Read with root privilegesEPSS 1.4%CVE-2026-119334LOWPi-hole: file:// adlist read check and curl can resolve different filesEPSS 0.3%CVE-2026-50130HIGHPi-hole: Local privilege escalation from `pihole` user to root via `/etc/pihole/logrotate`EPSS 0.3%CVE-2026-119336HIGHPi-hole: arbitrary root file clobber / chmod / disclosure via updatecheck.sh cron following /etc/pihole/versions symlinkEPSS 0.2%