CVE-2026-25904

MEDIUM

5.8

Description

The Pydantic-AI MCP Run Python tool configures the Deno sandbox with an overly permissive configuration that allows the underlying Python code to access the localhost interface of the host to perform SSRF attacks. Note - the "mcp-run-python" project is archived and unlikely to receive a fix.

CVE Details

CVSS v3.1 Score5.8

SeverityMEDIUM

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

Attack VectorNETWORK

ComplexityHIGH

Privileges RequiredNONE

User InteractionREQUIRED

Published2/9/2026

Last Modified2/9/2026

Sourcenvd

Honeypot Sightings0

Weaknesses (CWE)

CWE-918

References

https://research.jfrog.com/vulnerabilities/mcp-run-python-deno-ssrf-jfsa-2026-001653029/(reefs@jfrog.com)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.