CVE-2025-55300

Publication date

2025-08-18 17:41:37

Family

GitHub_M

State

PUBLISHED

Description

Komari is a lightweight, self-hosted server monitoring tool designed to provide a simple and efficient solution for monitoring server performance. Prior to 1.0.4-fix1, WebSocket upgrader has disabled origin checking, enabling Cross-Site WebSocket Hijacking (CSWSH) attacks against authenticated users. Any third party website can send requests to the terminal websocket endpoint with browsers cookies, resulting in remote code execution. This vulnerability is fixed in 1.0.4-fix1.