CVE-2026-25905

MEDIUM

5.8

Beschreibung

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. Note - the "mcp-run-python" project is archived and unlikely to receive a fix.

CVE Details

CVSS v3.1 Bewertung5.8

SchweregradMEDIUM

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

AngriffsvektorNETWORK

KomplexitatHIGH

Erforderliche PrivilegienNONE

BenutzerinteraktionREQUIRED

Veroffentlicht2/9/2026

Zuletzt geandert2/9/2026

Quellenvd

Honeypot-Sichtungen0

Schwachen (CWE)

CWE-653

Referenzen

https://research.jfrog.com/vulnerabilities/mcp-run-python-lack-of-isolation-mcp-takeover-jfsa-2026-001653030/(reefs@jfrog.com)

IOC Korrelationen

Keine Korrelationen erfasst

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