What’s Vulnerable › Vulnerabilities

CVE-2026-44888: Unauthenticated RCE via Python Config File Injection in SaveConfigFile() (Interger)

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-05-27 · updated 2026-10-26
• Weakness: CWE-94

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.

Affected products

• leiweibau Pi.Alert: before 2026-05-07

References

• https://github.com/leiweibau/Pi.Alert/security/advisories/GHSA-xg85-f8qw-7c5f
• https://github.com/leiweibau/Pi.Alert/security/advisories/GHSA-xg85-f8qw-7c5f

Get alerted when CVE-2026-44888 or the next vulnerability affects your stack