{"id":"CVE-2026-33727","summary":"Pi-hole has a Local Privilege Escalation (post-compromise, pihole -\u003e root).","details":"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.","aliases":["GHSA-c935-8g63-qp74"],"modified":"2026-07-15T01:49:21.102409892Z","published":"2026-04-06T15:02:19.693Z","database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-269"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33727.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33727.json"},{"type":"ADVISORY","url":"https://github.com/pi-hole/pi-hole/security/advisories/GHSA-c935-8g63-qp74"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-33727"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/pi-hole/pi-hole","events":[{"introduced":"a393dd83f3c2efb524683a5d893494a1d414a253"},{"fixed":"d3bbfea9c00523723dfee788280b69770bbcd8bd"}],"database_specific":{"cpe":"cpe:2.3:a:pi-hole:pi-hole:6.4:*:*:*:*:*:*:*","extracted_events":[{"introduced":"6.4"},{"fixed":"6.4.1"},{"last_affected":"6.4"}],"source":["AFFECTED_FIELD","CPE_STRING"]}}],"versions":["6.4","v6.4"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-33727.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H"}]}