CVE-2025-55300 | THREATINT

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 browser's cookies, resulting in remote code execution. This vulnerability is fixed in 1.0.4-fix1.

PUBLISHED Reserved 2025-08-12 | Published 2025-08-18 | Updated 2025-08-18 | Assigner GitHub_M

HIGH: 8.6CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Problem types

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Product status

< 1.0.4-fix1

affected

References

github.com/...komari/security/advisories/GHSA-q355-h244-969h

github.com/...ommit/d31d12e59febce100ab0285b93338f09aa5d6cb1

cve.org (CVE-2025-55300)

nvd.nist.gov (CVE-2025-55300)

Download JSON