CVE-2026-44888 Details
Description
Pi.Alert is a WIFI / LAN intruder detector with web service monitoring. Prior to 2026-05-07, Pi.Alert's SaveConfigFile() endpoint writes user-supplied numeric config values (e.g., SMTP_PORT) directly into pialert.conf without validation. Since pialert.conf is loaded via Python's exec() every 3–5 minutes by the background cron process, an attacker can inject arbitrary Python code and achieve unauthenticated OS-level RCE. On default installations (PIALERT_WEB_PROTECTION = False), no credentials are required. This vulnerability is fixed in 2026-05-07.
A vulnerability in Pi.Alert prior to May 7, 2026, allows for unauthenticated remote code execution at the operating system level. The issue arises in the SaveConfigFile() endpoint, which writes user-supplied numeric configuration values directly into pialert.conf without proper validation. This configuration file is executed by a background cron process every 3 to 5 minutes, enabling an attacker to inject arbitrary Python code. On default installations, where PIALERT_WEB_PROTECTION is set to false, no credentials are required to exploit this vulnerability.
Users are advised to update to the version released on May 7, 2026, which addresses this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed May 27, 2026CISA-ADP
Assessed May 28, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/leiweibau/Pi.Alert/security/advisories/GHSA-xg85-f8qw-7c5f | CISA-ADP | AdvisoryExploitRemedyVendor |
| https://github.com/leiweibau/Pi.Alert/security/advisories/GHSA-xg85-f8qw-7c5f | [email protected] | AdvisoryExploitRemedyVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-94 | Improper Control of Generation of Code ('Code Injection') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Pi.Alert | < 2026-05-07 |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| May 28, 2026 | CVE Modified | CISA-ADP |
| May 27, 2026 | New CVE Received | [email protected] |