GHSA-wcjj-9m6g-2fr2: functype-mcp-server: MCP `set_functype_version` Package Alias RCE via Unsanitized pnpm install + Dynamic Import
Summary
The `set_functype_version` tool in functype-mcp-server accepts any version string without validation and installs it via `pnpm add`, allowing an attacker to supply a malicious package path (like `file:/path/to/evil`). After installation, the server immediately imports the package using dynamic import (a technique where code loads modules at runtime), executing arbitrary attacker code with full server privileges (RCE - remote code execution).
Vulnerability Details
EPSS: 0.0%
Yes
September 9, 2026
Classification
Taxonomy References
Affected Vendors
Affected Packages
Related Issues
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Original source: https://github.com/advisories/GHSA-wcjj-9m6g-2fr2
First tracked: September 9, 2026 at 08:01 PM
Classified by LLM (prompt v3) · confidence: 85%