by Kastro
Paper/Archive/CVE-2026-44887

CVE-2026-44887

leiweibau Pi.Alert — Unauthenticated RCE via Python Config File Injection in SaveConfigFile() (Path)

EPSS 0.5%CVSS 9.8
critical.is priorityof 100
39
CVSS 9.8 (CNA)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 45.7.457 × 209.1No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

Pi.Alert is a WIFI / LAN intruder detector with web service monitoring. Prior to 2026-05-07, Pi.Alert's web-based configuration editor allows arbitrary Python code to be injected into pialert.conf. Since the background scan daemon loads this file via Python's exec(), injected code executes as the daemon process. With web protection disabled (the default configuration), no authentication is required, making this an unauthenticated Remote Code Execution vulnerability. This vulnerability is fixed in 2026-05-07.

Affected

ProductAffectedFixed inSource
Pi.Alert< 2026-05-07–CNA

Scores by source

GitHub_M (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

exploitgithub.com/leiweibau/Pi.Alert/security/advisories/GHSA-r59g-5wf9-f7vv