CVE-2026-55182
Gravedad CVSS v4.0:
ALTA
Tipo:
CWE-77
Neutralización incorrecta de elementos especiales usados en un comando (Inyección de comando)
Fecha de publicación:
26/08/2026
Última modificación:
26/08/2026
Descripción
*** Pendiente de traducción *** LibreNMS is a network monitoring system. In versions from 21.6.0 up to 26.5.0, the Signal alert transport is vulnerable to command injection because the signal-cli path and the Recipient field of an alert transport entry are insufficiently escaped before being passed to an exec call. An authenticated administrator can craft a transport entry whose Recipient contains shell metacharacters and whose path points to the bundled composer_wrapper.php script, which itself passes attacker-controlled input to further unsafe exec calls. By chaining these calls, the administrator can execute arbitrary operating-system commands on the LibreNMS host. This issue is fixed in version 26.5.0.
Impacto
Puntuación base 4.0
8.60
Gravedad 4.0
ALTA