CVE-2026-25904 — Overly permissive Deno configuration in mcp-run-python leads to SSRF
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 …
Published: 2026-02-09 · CVSS: 5.8 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7