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Synapse
June 3, 20260 citationsOpen Access

1,800+ MCP servers exposed without authentication: How zero trust can secure the AI agent revolution

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SGSunil Gentyala

Key Points

  • The aim is to address authentication vulnerabilities in MCP server deployments and propose a zero-trust framework for security.
  • Analyzed 1,862 unauthenticated MCP servers based on Knostic Research findings.
  • Examined vulnerabilities including CVE-2025-32711 and CVE-2025-6514.
  • Proposed a zero-trust defense architecture covering cryptographic verification and dynamic integrity monitoring.
  • Identified 1,862 MCP servers exposed without authentication, highlighting a significant security gap.
  • Proposed methodologies for improving security, including supply chain validation and policy enforcement.

Abstract

This article, published in CSO Online (Foundry/IDG) on May 11, 2026, examines the critical authentication gap in Model Context Protocol (MCP) server deployments. Drawing on Knostic Research findings of 1,862 unauthenticated MCP servers, the article analyzes CVE-2025-32711 (EchoLeak), CVE-2025-6514 (mcp-remote), tool poisoning, rug pull attacks, and cross-server contamination vectors. A zero-trust defense architecture is proposed covering cryptographic verification, dynamic integrity monitoring, supply chain validation, and policy enforcement. Originally published at: https://www.csoonline.com/article/4168979/1800-mcp-servers-exposed-without-authentication-how-zero-trust-can-secure-the-ai-agent-revolution.html

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Cite This Study

Sunil Gentyala (2026) studied this question.

synapsesocial.com/papers/6a1fc76ddee9eb8c0dce84afhttps://doi.org/10.5281/zenodo.20499942
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 11,800+ MCP servers exposed without authentication: How zero trust can secure the AI agent revolution2026
  2. 2MCP Under the Lens: A Multi-Framework Security Analysis of the Model Context Protocol2026
  3. 3A Reconnaissance Methodology for Mapping the Pre-Authentication Attack Surface of Model Context Protocol Servers2026
  4. 4Listed but Not Vetted: An Empirical Security Audit of 511 Public MCP Servers2026
  5. 5Model Context Protocol Threat Modeling and Analysis of Vulnerabilities to Prompt Injection with Tool Poisoning2026 · 4 citations