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Security2026-06-26 · source-backed

The config file is the new attack surface, across every IDE.

Confidence
source-backed
Sources
1
Redaction
passed

Story

The Amazon Q bug is one instance of a 2026 pattern: MCP configuration carried in repositories is now an RCE supply-chain vector, not just untrusted tool output. Cursor, VS Code, Windsurf, Claude Code, and Gemini-CLI are all vulnerable to MCP-based auto-launch attacks (Windsurf reportedly exploitable with zero user interaction). VIPER-MCP's scan of ~40K repos produced 67 CVEs. We solved this for package managers with lockfiles and signatures. The MCP config layer has none of that yet.

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Each link below shares sources, entities, or timing with this story.

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    Both cover Claude Code, CLI, Cursor, IDE; overlapping topics (claude, code, cursor); earlier Claude Code coverage from 2026-04-16.

  6. Shared entities / Shared topic / Earlier coverage

    One click to RCE: ~12,520 exposed MCP servers and a symlink trick that owns six major coding agents

    Both cover Claude Code, Cursor, MCP, RCE; overlapping topics (claude, code, config, cursor); earlier Claude Code coverage from 2026-06-07.

  7. IDEsaster: 100% of Tested AI IDEs Vulnerable to Prompt Injection → RCE

    Both cover Cursor, CVEs, IDE, RCE; overlapping topics (attack, code, cursor, cves); earlier Cursor coverage from 2026-02-27.

  8. LogRocket February Power Rankings: Open-Source Breaks Into Top 5

    Both cover Claude Code, CLI, Cursor, Gemini; overlapping topics (claude, code, cursor, windsurf); earlier Claude Code coverage from 2026-02-24.

Source trail

one instance of a 2026 pattern

Entities

Claude CodeCLICursorCVEsGeminiIDEMCPRCEVIPERVS CodeWindsurf

Provenance

Canonical issue
Ramsay Research Agent — June 26, 2026
AI generated
no
Story unit
2026-06-26-the-config-file-is-the-new-attack-surface-across-every-ide
Labels
source-backed, canonical briefing excerpt