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Security audit finds 37% of MCP endpoints lack authentication

By PulseAugur Editorial · [1 sources] ·

A security audit of 57 servers advertising Streamable HTTP endpoints within the MCP registry revealed significant vulnerabilities. Approximately 37% of these endpoints completed the handshake without any authentication, with many exposing sensitive account management tools. Furthermore, 76% of the unauthenticated endpoints provided their full tool inventory to callers. The audit also identified an architectural flaw termed 'Session-as-Identity', where session IDs are not properly bound to authenticated subjects, allowing for session hijacking and termination. AI

IMPACT Highlights critical security flaws in agent-facing protocols, potentially impacting LLM agent security and adoption.

RANK_REASON Security audit report detailing vulnerabilities in a specific protocol. [lever_c_demoted from research: ic=1 ai=1.0]

Read on dev.to — MCP tag →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

Security audit finds 37% of MCP endpoints lack authentication

How we ranked this

Signal score
43 / 100
Composite score across the factors below. Higher = stronger signal that this story matters right now.
Newsworthiness bucket
Tool
Security audit report detailing vulnerabilities in a specific protocol. [lever_c_demoted from research: ic=1 ai=1.0]
Source corroboration
Single-source cluster
Only one publisher covered this so far. Single-source stories can still rank when the publisher is high-authority, but they lack cross-source corroboration.
Topics
safety, product
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High
Clearly on-topic for AI-industry coverage.
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Breaking (< 6h)
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Full methodology in our editorial standards.

COVERAGE [1]

  1. dev.to — MCP tag TIER_1 English(EN) · correctover ·

    The Schrödinger Identity of MCP: 37% of Officially Registered Endpoints Don't Know Who You Are

    <h1> The Schrödinger Identity of MCP: 37% of Officially Registered Endpoints Don't Know Who You Are </h1> <p><em>Guigui Wang — Correctover · 2026-11-12 · raw data &amp; replayable scripts: <a href="https://github.com/DSHCorrectover/mcp-session-audit" rel="noopener noreferrer">git…

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