MCP supply chain attacks via npm/PyPI distribution

8/10 High

MCP servers are distributed via npm and PyPI without universal verification, exposing the ecosystem to the same supply chain attacks that plague web development. Tool descriptions can be modified post-approval (rug pulls).

MCPnpmPyPI
Category
security
Workaround
none
Stage
deploy
Freshness
persistent
Scope
framework
Upstream
open
Recurring
Yes
Buyer Type
enterprise
Maintainer
active

Sources

Collection History

Query: “What are the most common pain points with MCP for developers in 2025?”4/7/2026

Because MCP Servers are distributed via npm and PyPI without universal verification, the ecosystem is exposed to the same supply chain attacks that have plagued web development for years. Tool descriptions can also be modified after a user approves them, a technique researchers call a rug pull.

Created: 4/7/2026Updated: 4/7/2026