CVE-2026-25905 Lack of isolation in mcp-run-python leads to MCP server takeover

The Python code being run by 'runPython' or 'runPythonAsync' is not isolated from the rest of the JS code, allowing any Python code to use the Pyodide APIs to modify the JS environment. This may result in an attacker hijacking the MCP server - for malicious purposes including MCP tool shadowing...

CVE-2026-25905

The Python code being run by 'runPython' or 'runPythonAsync' is not isolated from the rest of the JS code, allowing any Python code to use the Pyodide APIs to modify the JS environment. This may result in an attacker hijacking the MCP server - for malicious purposes including MCP tool shadowing...

CVE-2026-25905

The Python code being run by 'runPython' or 'runPythonAsync' is not isolated from the rest of the JS code, allowing any Python code to use the Pyodide APIs to modify the JS environment. This may result in an attacker hijacking the MCP server - for malicious purposes including MCP tool shadowing...

PT-2026-7090

Name of the Vulnerable Software and Affected Versions MCP affected versions not specified Description The Python code executed by the 'runPython' or 'runPythonAsync' functions lacks isolation from other JavaScript code. This allows Python code to utilize Pyodide APIs to alter the JavaScript...

Critical Grist-Core Vulnerability Allows RCE Attacks via Spreadsheet Formulas

A critical security flaw has been disclosed in Grist‑Core, an open-source, self-hosted version of the Grist relational spreadsheet-database, that could result in remote code execution. The vulnerability, tracked as CVE-2026-24002 CVSS score: 9.1, has been codenamed Cellbreak by Cyera Research Lab...

CVE-2026-24002

Grist is spreadsheet software using Python as its formula language. Grist offers several methods for running those formulas in a sandbox, for cases where the user may be working with untrusted spreadsheets. One such method runs them in pyodide, but pyodide on node does not have a useful sandbox...

CVE-2026-24002

Grist is spreadsheet software using Python as its formula language. Grist offers several methods for running those formulas in a sandbox, for cases where the user may be working with untrusted spreadsheets. One such method runs them in pyodide, but pyodide on node does not have a useful sandbox...

CVE-2026-24002

Grist is spreadsheet software using Python as its formula language. Grist offers several methods for running those formulas in a sandbox, for cases where the user may be working with untrusted spreadsheets. One such method runs them in pyodide, but pyodide on node does not have a useful sandbox...

CVE-2026-24002 pyodide sandbox option is insecure

Grist is spreadsheet software using Python as its formula language. Grist offers several methods for running those formulas in a sandbox, for cases where the user may be working with untrusted spreadsheets. One such method runs them in pyodide, but pyodide on node does not have a useful sandbox...

EUVD-2026-4212

Grist is spreadsheet software using Python as its formula language. Grist offers several methods for running those formulas in a sandbox, for cases where the user may be working with untrusted spreadsheets. One such method runs them in pyodide, but pyodide on node does not have a useful sandbox...

CVE-2026-24002

Grist is spreadsheet software using Python as its formula language. Grist offers several methods for running those formulas in a sandbox, for cases where the user may be working with untrusted spreadsheets. One such method runs them in pyodide, but pyodide on node does not have a useful sandbox...

CVE-2026-24002 pyodide sandbox option is insecure

Grist is spreadsheet software using Python as its formula language. Grist offers several methods for running those formulas in a sandbox, for cases where the user may be working with untrusted spreadsheets. One such method runs them in pyodide, but pyodide on node does not have a useful sandbox...

CVE-2026-24002 pyodide sandbox option is insecure

Grist is spreadsheet software using Python as its formula language. Grist offers several methods for running those formulas in a sandbox, for cases where the user may be working with untrusted spreadsheets. One such method runs them in pyodide, but pyodide on node does not have a useful sandbox...

CVE-2026-24002

CVE-2026-24002 – Grist sandbox escape vulnerability affects Grist Core (Grist open-source self-hosted spreadsheet/database). The issue arises when running formulas in the Pyodide sandbox on Node.js, where the sandbox barrier is insufficient, allowing an untrusted spreadsheet to escape to host exe...

CVE-2026-24002: Improper Neutralization of Special Elements in Output Used by a Downstream Component

Grist is spreadsheet software using Python as its formula language. Grist offers several methods for running those formulas in a sandbox, for cases where the user may be working with untrusted spreadsheets. One such method runs them in pyodide, but pyodide on node does not have a useful sandbox...

PT-2026-3906

Name of the Vulnerable Software and Affected Versions Grist versions prior to 1.7.9 Description Grist is spreadsheet software that utilizes Python as its formula language. When configured to run formulas in the Pyodide sandbox GRIST SANDBOX FLAVOR set to pyodide, a crafted spreadsheet formula can...

Grist injection vulnerability

Grist is a modern relational spreadsheet developed by Grist Open Source. Versions of Grist prior to 1.7.9 had an injection vulnerability, which was caused by insufficient pyodide sandbox barriers. This vulnerability could allow for the execution of arbitrary processes on the server...

N8n < 2.0.0 Multiple Vulnerabilities

According to its banner, the version of n8n running on the remote host is 1.0.0 or later and before 2.0.0. It is, therefore, affected by multiple vulnerabilities: - An authenticated arbitrary file read and file write vulnerability - An authenticated arbitrary command execution vulnerability in...

Remote Code Execution (RCE)

n8n is vulnerable to Remote Code Execution RCE. The vulnerability is due to insufficient isolation in the Pyodide-based Python Code Node, which allows an authenticated attacker with workflow modification privileges to escape the sandbox and execute arbitrary commands on the host system running n8...

CVE-2025-68668 n8n Vulnerable to Arbitrary Command Execution in Pyodide based Python Code Node

n8n is an open source workflow automation platform. From version 1.0.0 to before 2.0.0, a sandbox bypass vulnerability exists in the Python Code Node that uses Pyodide. An authenticated user with permission to create or modify workflows can exploit this vulnerability to execute arbitrary commands...