CVE-2026-39987

CVE-2026-39987 — Marimo Pre-Auth RCE /terminal/ws root@kitploit: CVSS 4.0 : 9.3 CRITICAL CVSS 3.x : 9.8 CRITICAL CWE : CWE-306 Missing Authentication for Critical Function Fix : Marimo 0.23.0+ Affects : Marimo Lab / authorized testing only HTB, CTF, engagement with written scope. Table of content...

CVE-2026-39987_exploit

🔥 CVE-2026-39987 | Marimo Pre-Auth RCE Exploit Exploitation Framework | Full Remote Code Execution RCE | WebSocket Auth Bypass 🧠 To know the commands more Open the file website.html 🎯 Overview This exploit targets Marimo applications running WebSocket on port 2718 default. The vulnerability allow...

CVE-2026-39987

CVE-2026-39987 — Marimo Python Notebook Pre-Authenticated Remote Code Execution TL;DR A pre-authenticated remote code execution vulnerability in Marimo , an open-source Python notebook for data science and AI/ML. The terminal WebSocket endpoint /terminal/ws completely skips authentication...

CVE-2026-39987

CVE-2026-39987 — Marimo 预认证远程代码执行 仅供教育和授权安全研究使用。 描述 Marimo = 0.20.4 中存在预认证远程代码执行漏洞。 WebSocket 端点 /terminal/ws 跳过了身份验证校验，允许未认证的攻击者通过单次连接获得完整的交互式 PTY shell。 CVSS v4.0： 9.3（严重） CWE： CWE-306（关键功能缺少身份验证） 受影响版本： = 0.20.4 修复版本： 0.23.0 环境要求 Python 3 websockets（pip install websockets） 可访问目标上的 2718 端口 端点验证...

CVE-2026-39987

CVE-2026-39987 — Marimo Pre-Auth RCE via Terminal WebSocket root@kitploit: / / | / / / | \ / \ \ / / | // / \ / / | | / / // // / / // // \ / Status: Patched in 0.23.0 — marimo-team/marimo@c24d480 Vulnerability The /terminal/ws endpoint lacks the validateauth call present in every other authe...

CVE-2026-39987-PoC

CVE-2026-39987 PoC Summary Marimo = 0.20.4 is affected by a pre-authentication RCE vulnerability in the /terminal/ws WebSocket endpoint. The endpoint checks the application mode and terminal support, but does not validate authentication before accepting the WebSocket connection. It then creates a...

Heroinn

Heroinn A cross platform C2/post-exploitation framework implementation by Rust. This project is for research and study purposes only, and any illegal behavior using this project has nothing to do with this project. Features GUI Interactive PTY shell System infomations collect File manager support...

CVE-2026-86121 Cua computer-server before 0.3.42 Unauthenticated RCE via Desktop Control

Cua computer-server versions before 0.3.42 skip authentication when the CONTAINERNAME environment variable is unset and bind to all interfaces by default, allowing unauthenticated attackers to execute arbitrary commands. Attackers can reach TCP port 8000 to run shell commands via the runcommand...

EUVD-2026-71953

Cua computer-server versions before 0.3.42 skip authentication when the CONTAINERNAME environment variable is unset and bind to all interfaces by default, allowing unauthenticated attackers to execute arbitrary commands. Attackers can reach TCP port 8000 to run shell commands via the runcommand...

MAL-2026-10720 Malicious code in @vibelet/cli (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector 3f3dc6503f9f63413994c6d0b2e19f22ebcf17f5e7ba9f713ce26ecf69c92c6c The @vibelet/cli package ships a daemon bundle dist/index.cjs, invoked by the vibelet bin and by vibelet start/restart/reset that starts an...

EUVD-2026-42722

Hermes WebUI before 0.51.788 contains an unauthenticated remote code execution vulnerability that allows remote attackers to execute arbitrary shell commands by accessing the embedded terminal API endpoints without credentials. Attackers can create a session, attach a PTY shell, and write arbitra...

CVE-2026-39987

marimo is a reactive Python notebook. Prior to 0.23.0, Marimo has a Pre-Auth RCE vulnerability. The terminal WebSocket endpoint /terminal/ws lacks authentication validation, allowing an unauthenticated attacker to obtain a full PTY shell and execute arbitrary system commands. Unlike other WebSock...

CVE-2026-39987

marimo is a reactive Python notebook. Prior to 0.23.0, Marimo has a Pre-Auth RCE vulnerability. The terminal WebSocket endpoint /terminal/ws lacks authentication validation, allowing an unauthenticated attacker to obtain a full PTY shell and execute arbitrary system commands. Unlike other WebSock...

CVE-2026-39987

CVE-2026-39987 — Marimo WebSocket terminal endpoint unauthenticated pre-auth RCE. The vulnerability resides in the terminal WebSocket at /terminal/ws, which accepts connections without authenticating, unlike the /ws endpoint that invokes validate_auth(). An unauthenticated client can obtain a ful...

EUVD-2026-20980

marimo is a reactive Python notebook. Prior to 0.23.0, Marimo has a Pre-Auth RCE vulnerability. The terminal WebSocket endpoint /terminal/ws lacks authentication validation, allowing an unauthenticated attacker to obtain a full PTY shell and execute arbitrary system commands. Unlike other WebSock...

marimo 访问控制错误漏洞

Marimo is an open-source interactive Python notebook that supports reactive programming and SQL queries. Versions of Marimo prior to 0.23.0 contained a access control vulnerability. This vulnerability stemmed from the lack of authentication for the terminal WebSocket endpoint, allowing...

VulnCheck KEV: CVE-2026-39987

marimo is a reactive Python notebook. Prior to 0.23.0, Marimo has a Pre-Auth RCE vulnerability. The terminal WebSocket endpoint /terminal/ws lacks authentication validation, allowing an unauthenticated attacker to obtain a full PTY shell and execute arbitrary system commands. Unlike other WebSock...

A Red Teamer’s guide to pivoting

A Red Teamer’s guide to pivoting A Red Teamer's guide to pivoting Penetration testers often traverse logical network boundaries in order to gain access to client’s critical infrastracture. Common scenarios include developing the attack into the internal network after successful perimeter breach o...