CVE-2026-44888
Unauthenticated RCE via Python Config File Injection in SaveConfigFile() (Interger)
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.
INFO
Published Date :
May 27, 2026, 8:16 p.m.
Last Modified :
Oct. 26, 2026, 11:10 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | CRITICAL | [email protected] | ||||
| CVSS 3.1 | CRITICAL | MITRE-CVE |
Solution
- Update Pi.Alert to version 2026-05-07.
- Ensure PIALERT_WEB_PROTECTION is enabled.
- Remove any previously injected malicious code.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-44888.
| URL | Resource |
|---|---|
| https://github.com/leiweibau/Pi.Alert/security/advisories/GHSA-xg85-f8qw-7c5f | |
| https://github.com/leiweibau/Pi.Alert/security/advisories/GHSA-xg85-f8qw-7c5f |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-44888 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-44888
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-44888 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-44888 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Translated by [email protected]
Oct. 26, 2026
Action Type Old Value New Value Added Translation Title: Pi.Alert de leiweibau, Description: Pi.Alert es un detector de intrusos WIFI / LAN con monitoreo de servicios web. Antes del 07-05-2026, el endpoint SaveConfigFile() de Pi.Alert escribe valores de configuración numéricos proporcionados por el usuario (por ejemplo, SMTP_PORT) directamente en pialert.conf sin validación. Dado que pialert.conf se carga a través de exec() de Python cada 3-5 minutos por el proceso cron en segundo plano, un atacante puede inyectar código Python arbitrario y lograr RCE a nivel de sistema operativo no autenticado. En instalaciones predeterminadas (PIALERT_WEB_PROTECTION = False), no se requieren credenciales. Esta vulnerabilidad se corrigió el 07-05-2026. -
CVE Modified by [email protected]
Jun. 17, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'leiweibau', 'product': 'Pi.Alert', 'versions': [{'status': 'affected', 'version': '< 2026-05-07'}]}] -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 17, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-44888', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'poc'}, {'automatable': 'yes'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-05-28T13:22:56.778573Z'} -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
May. 28, 2026
Action Type Old Value New Value Added Reference https://github.com/leiweibau/Pi.Alert/security/advisories/GHSA-xg85-f8qw-7c5f -
New CVE Received by [email protected]
May. 27, 2026
Action Type Old Value New Value Added 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. Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-94 Added Reference https://github.com/leiweibau/Pi.Alert/security/advisories/GHSA-xg85-f8qw-7c5f