CVE-2026-115477

The obsidian-tc Model Context Protocol server (versions 1.13.0 through 1.31.4 ) contains a vulnerability where destructive tool calls can be executed without human approval. In Streamable HTTP deployments with auth.jwtSecret configured and specific client support, the server improperly trusted a ...

CVE-2026-115477 obsidian-tc: Declined human-in-the-loop confirmations can permit destructive calls over HTTP

obsidian-tc is a governed, agent-ready Model Context Protocol server for Obsidian vaults. From 1.13.0 until 1.31.4, on a Streamable HTTP deployment with auth.jwtSecret configured and a 2026-07-28-era client declaring elicitation.form support, a dispatch-gated tool call offered an inputRequired...

EUVD-2026-108992

NetBox MCP Server is a simple read-only Model Context Protocol server for NetBox. Prior to version 1.2.1, when running with TRANSPORT=http, the MCP server has no authentication on the HTTP endpoint. Any client that can reach the port gets a valid MCP session and full access to all four NetBox too...

PT-2026-122122

obsidian-tc is a governed, agent-ready Model Context Protocol server for Obsidian vaults. From 1.13.0 until 1.31.4, on a Streamable HTTP deployment with auth.jwtSecret configured and a 2026-07-28-era client declaring elicitation.form support, a dispatch-gated tool call offered an inputRequired...

From TCP/IP to MCP: Security and Governance Lessons from Internet Protocols for Agentic AI

The past two years have seen considerable interest in protocols for managing how AI agents interact with human users, external tools, and each other. In many ways, these protocols, including the Model Context Protocol MCP and Agent2Agent A2A, mirror the suite of protocols that underlie the modern...

CVE-2026-59951

A flaw was found in the Model Context Protocol MCP Python SDK. Stateful streamable HTTP servers fail to enforce idle session expiration or limits on active sessions, preventing terminated or rejected requests from releasing their resources. A remote attacker can exploit this issue by repeatedly...

CVE-2026-109527

The Model Context Protocol Python SDK is the official Python SDK for Model Context Protocol servers and clients. In mcp versions before 1.29.1 and from 2.0.0a1 through 2.0.1, the Streamable HTTP session manager, SSE message endpoint, and OAuth authorization-server routes buffer complete HTTP...

CVE-2026-108395

The Model Context Protocol Java SDK is the official Java SDK for Model Context Protocol servers and clients. From version 0.8.0 through 0.12.0 in the io.modelcontextprotocol.sdk:mcp artifact, from 0.13.0 through 0.18.3 and 1.0.0 through 1.1.3 in io.modelcontextprotocol.sdk:mcp-core, and from...

CVE-2026-109527 Model Context Protocol Python SDK HTTP and OAuth endpoints allow memory exhaustion through unbounded request bodies

The Model Context Protocol Python SDK is the official Python SDK for Model Context Protocol servers and clients. In mcp versions before 1.29.1 and from 2.0.0a1 through 2.0.1, the Streamable HTTP session manager, SSE message endpoint, and OAuth authorization-server routes buffer complete HTTP...

CVE-2026-109527

The Model Context Protocol Python SDK is vulnerable to a memory exhaustion Denial of Service (DoS) in versions before 1.29.1 and from 2.0.0a1 through 2.0.1 . The vulnerability exists because the Streamable HTTP session manager , SSE message endpoint , and OAuth authorization-server routes buffer ...

EUVD-2026-101514

The Model Context Protocol Python SDK is the official Python SDK for Model Context Protocol servers and clients. In mcp versions before 1.29.1 and from 2.0.0a1 through 2.0.1, the Streamable HTTP session manager, SSE message endpoint, and OAuth authorization-server routes buffer complete HTTP...

CVE-2026-109527

The Model Context Protocol Python SDK is the official Python SDK for Model Context Protocol servers and clients. In mcp versions before 1.29.1 and from 2.0.0a1 through 2.0.1, the Streamable HTTP session manager, SSE message endpoint, and OAuth authorization-server routes buffer complete HTTP...

CVE-2026-109527 Model Context Protocol Python SDK HTTP and OAuth endpoints allow memory exhaustion through unbounded request bodies

The Model Context Protocol Python SDK is the official Python SDK for Model Context Protocol servers and clients. In mcp versions before 1.29.1 and from 2.0.0a1 through 2.0.1, the Streamable HTTP session manager, SSE message endpoint, and OAuth authorization-server routes buffer complete HTTP...

CVE-2026-108395 Model Context Protocol Java SDK HTTP server transports allow memory exhaustion through unbounded request bodies

The Model Context Protocol Java SDK is the official Java SDK for Model Context Protocol servers and clients. From version 0.8.0 through 0.12.0 in the io.modelcontextprotocol.sdk:mcp artifact, from 0.13.0 through 0.18.3 and 1.0.0 through 1.1.3 in io.modelcontextprotocol.sdk:mcp-core, and from...

EUVD-2026-101503

The Model Context Protocol Java SDK is the official Java SDK for Model Context Protocol servers and clients. From version 0.8.0 through 0.12.0 in the io.modelcontextprotocol.sdk:mcp artifact, from 0.13.0 through 0.18.3 and 1.0.0 through 1.1.3 in io.modelcontextprotocol.sdk:mcp-core, and from...

CVE-2026-108395

The Model Context Protocol Java SDK is the official Java SDK for Model Context Protocol servers and clients. From version 0.8.0 through 0.12.0 in the io.modelcontextprotocol.sdk:mcp artifact, from 0.13.0 through 0.18.3 and 1.0.0 through 1.1.3 in io.modelcontextprotocol.sdk:mcp-core, and from...

CVE-2026-108395

The Model Context Protocol Java SDK is vulnerable to memory exhaustion due to unbounded request bodies in certain server transports. Specifically, the Servlet-based SSE , Streamable HTTP , and Stateless server transports fail to enforce a maximum size when reading HTTP request bodies into memory....

CVE-2026-108395 Model Context Protocol Java SDK HTTP server transports allow memory exhaustion through unbounded request bodies

The Model Context Protocol Java SDK is the official Java SDK for Model Context Protocol servers and clients. From version 0.8.0 through 0.12.0 in the io.modelcontextprotocol.sdk:mcp artifact, from 0.13.0 through 0.18.3 and 1.0.0 through 1.1.3 in io.modelcontextprotocol.sdk:mcp-core, and from...

CVE-2026-108395 Model Context Protocol Java SDK HTTP server transports allow memory exhaustion through unbounded request bodies

The Model Context Protocol Java SDK is the official Java SDK for Model Context Protocol servers and clients. From version 0.8.0 through 0.12.0 in the io.modelcontextprotocol.sdk:mcp artifact, from 0.13.0 through 0.18.3 and 1.0.0 through 1.1.3 in io.modelcontextprotocol.sdk:mcp-core, and from...

CVE-2026-109527: Allocation of Resources Without Limits or Throttling

The Model Context Protocol Python SDK is the official Python SDK for Model Context Protocol servers and clients. In mcp versions before 1.29.1 and from 2.0.0a1 through 2.0.1, the Streamable HTTP session manager, SSE message endpoint, and OAuth authorization-server routes buffer complete HTTP...