gcdRadar
live/Research/AIR-2026-1725
liveliveResearch1 Research / proof of conceptAI

AI coding agents install unpatched archived MCP servers

MCP servers

Research shows AI coding agents select deprecated and unpatched Model Context Protocol servers from archived repositories during user sessions. This creates ongoing supply chain exposure on developer machines.

why this severityResearch demonstration showing unpatched deprecated packages being introduced by agents.

first report
3 Nov 2026
last update
3 Nov 2026

Timeline · 1

  1. 3 Nov 2026AI coding agents are installing MCP servers that will never be patched

Sources · 1

News and write-ups

  1. 2026-11-03
    AI coding agents are installing MCP servers that will never be patched
    Help Net Security · helpnetsecurity.com/2026/11/03/mcphantom-deprecated-mcp-servers

Titles and links belong to their publishers. The summary above is written by gcdRadar in its own words; data is CC BY-SA 4.0.

Classification

AI role
Attack on AI
categories
Infrastructure vulnerabilitySupply chain
severity
1 · Research / proof of concept
targets
Framework / tooling
owasp llm top 10
LLM03:2025 Supply Chain
dates
happened 3 Nov 2026 · first reported 3 Nov 2026
origin
News & research feeds
record
confidence 0.85 · created 2026-11-03 11:03Z · updated 2026-11-03 11:03Z

Lane, AI role, categories and severity come from the classifier; the OWASP and ATLAS rows are derived from the categories. How these are assigned

Copy a brief

This record as a short Markdown brief, for a ticket, a chat or a coding agent.

the brief as text
# AI coding agents install unpatched archived MCP servers

https://gcdradar.vercel.app/incidents/ai-coding-agents-install-unpatched-archived-mcp-servers · AIR-2026-1725 · live

- Lane: Research
- Severity: 1 (Research / proof of concept): Research demonstration showing unpatched deprecated packages being introduced by agents.
- Fix status: Fix status unknown
- First reported: 2026-11-03
- AI role: Attack on AI
- Products: MCP servers

## Summary

Research shows AI coding agents select deprecated and unpatched Model Context Protocol servers from archived repositories during user sessions. This creates ongoing supply chain exposure on developer machines.

## What to do

No action recorded; read the sources below and the vendor's advisory.

## Latest updates

- 2026-11-03: AI coding agents are installing MCP servers that will never be patched (https://helpnetsecurity.com/2026/11/03/mcphantom-deprecated-mcp-servers)

## Sources

- 2026-11-03 Help Net Security: AI coding agents are installing MCP servers that will never be patched https://helpnetsecurity.com/2026/11/03/mcphantom-deprecated-mcp-servers

Verify against the vendor's advisory before changing production. Data CC BY-SA 4.0, https://gcdradar.vercel.app.

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