CVE-2026-44888 Unauthenticated RCE via Python Config File Injection in SaveConfigFile() (Interger)
Unauthenticated attackers can inject Python code via config values to achieve remote code execution on Pi.Alert installations.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-44888?
CVE-2026-44888 is a critical code injection vulnerability in leiweibau Pi.Alert, published on 27 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-94
Which versions are affected by CVE-2026-44888?
How do I fix CVE-2026-44888?
No fix has been published for CVE-2026-44888 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2026-44888 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-44888 exists.
Sources
Also known as GHSA-xg85-f8qw-7c5f.