CVE-2026-39386— Neko has Self-service Privilege Escalation for Authenticated Users

Neko has Self-service Privilege Escalation for Authenticated Users

Neko is a a self-hosted virtual browser that runs in Docker and uses WebRTC In versions 3.0.0 through 3.0.10 and 3.1.0 through 3.1.1, any authenticated user can immediately obtain full administrative control of the entire Neko instance (member management, room settings, broadcast control, session termination, etc.). This results in a complete compromise of the instance. The vulnerability has been patched in v3.0.11 and v3.1.2. If upgrading is not immediately possible, the following mitigations can reduce risk: Restrict access to trusted users only (avoid granting accounts to untrusted parties); ensure all user passwords are strong and only shared with trusted individuals; run the instance only when needed; avoid leaving it continuously exposed; place the instance behind authentication layers such as a reverse proxy with additional access controls; disable or restrict access to the /api/profile endpoint if feasible; and/or monitor for suspicious privilege changes or unexpected administrative actions. Note that these are temporary mitigations and do not fully eliminate the vulnerability. Upgrading is strongly recommended.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

输入验证不恰当

n.eko 输入验证错误漏洞

n.eko是Miroslav Šedivý个人开发者的一个基于Docker和WebRTC的自托管虚拟浏览器。 n.eko 3.0.0版本至3.0.10版本和3.1.0版本至3.1.1版本存在输入验证错误漏洞，该漏洞源于任何经过身份验证的用户可以立即获得整个Neko实例的完全管理控制权，可能导致实例被完全破解。

N/A

N/A