Marimo: Pre-Auth Remote Code Execution via Terminal WebSocket Authentication Bypass

SummaryMarimo 19.6k stars 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 WebSocket endpoints e.g., /ws that correctly...

PYSEC-2026-407 Marimo: Pre-Auth Remote Code Execution via Terminal WebSocket Authentication Bypass

Summary Marimo 19.6k stars 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 WebSocket endpoints e.g., /ws that correct...

PT-2026-53490

Summary Marimo 19.6k stars 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 WebSocket endpoints e.g., /ws that correct...

Exploit for Missing Authentication for Critical Function in Coreweave Marimo

CVE-2026-39987 - a full PTY shell Unauthenticated Stored Cross...

Exploit for Missing Authentication for Critical Function in Coreweave Marimo

CVE-2026-39987 — marimo Pre-Auth Terminal WebSocket RCE Lab...

Python Library marimo < 0.23.0 Pre-Auth RCE (CVE-2026-39987)

The detected version of the marimo Python package is prior to 0.23.0. It is, therefore, affected by a remote code execution vulnerability: - The terminal WebSocket endpoint /terminal/ws lacks authentication validation, allowing an unauthenticated attacker to obtain a full PTY shell and execute...

Exploit for CVE-2026-39987

CVE-2026-39987 marimo is a reactive Python notebook. Prior to...

Exploit for CVE-2026-39987

CVE-2026-39987 — Marimo Python Notebook Pre-Authenticated Remo...

Exploit for CVE-2026-39987

markdown CVE-2026-39987 - Marimo Este script es SOLO para f...

Marimo RCE Flaw CVE-2026-39987 Exploited Within 10 Hours of Disclosure

A critical security vulnerability in Marimo, an open-source Python notebook for data science and analysis, has been exploited within 10 hours of public disclosure, according to findings from Sysdig. The vulnerability in question is CVE-2026-39987 CVSS score: 9.3, a pre-authenticated remote code...

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 Affected by Pre-Auth Remote Code Execution via Terminal WebSocket Authentication Bypass

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...

CVE-2026-39987 marimo Affected by Pre-Auth Remote Code Execution via Terminal WebSocket Authentication Bypass

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...

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...

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...

VulnCheck KEV: CVE-2026-39987

Marimo contains an pre-authorization remote code execution vulnerability, allowing an unauthenticated attacked to shell access and execute arbitrary system commands...

GHSA-2679-6MX9-H9XC Marimo: Pre-Auth Remote Code Execution via Terminal WebSocket Authentication Bypass

Summary Marimo 19.6k stars 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 WebSocket endpoints e.g., /ws that correct...

Marimo: Pre-Auth Remote Code Execution via Terminal WebSocket Authentication Bypass

Summary Marimo 19.6k stars 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 WebSocket endpoints e.g., /ws that correct...

Missing Authentication for Critical Function

Overview marimo is an A library for making reactive notebooks and apps Affected versions of this package are vulnerable to Missing Authentication for Critical Function via the terminal/ws WebSocket endpoint, which lacks authentication validation. An unauthenticated attacker can gain unauthorized...