CVE-2025-66414 DNS Rebinding Protection Disabled by Default in Model Context Protocol TypeScript SDK for Servers Running on Localhost

MCP TypeScript SDK is the official TypeScript SDK for Model Context Protocol servers and clients. Prior to 1.24.0, The Model Context Protocol MCP TypeScript SDK does not enable DNS rebinding protection by default for HTTP-based servers. When an HTTP-based MCP server is run on localhost without...

Model Context Protocol (MCP) Python SDK does not enable DNS rebinding protection by default

Description The Model Context Protocol MCP Python SDK does not enable DNS rebinding protection by default for HTTP-based servers. When an HTTP-based MCP server is run on localhost without authentication using FastMCP with streamable HTTP or SSE transport, and has not configured...

EUVD-2025-200273

Model Context Protocol MCP Python SDK does not enable DNS rebinding protection by default...

GHSA-9H52-P55H-VW2F Model Context Protocol (MCP) Python SDK does not enable DNS rebinding protection by default

Description The Model Context Protocol MCP Python SDK does not enable DNS rebinding protection by default for HTTP-based servers. When an HTTP-based MCP server is run on localhost without authentication using FastMCP with streamable HTTP or SSE transport, and has not configured...

12306-adk-mcp (=0.3.4), 12306-mcp (>=0.3.3 <=0.3.8) +1973 more potentially affected by CVE-2025-66414 via @modelcontextprotocol/sdk (>=1.0.0 <=1.23.1)

@modelcontextprotocol/sdk NPM version =1.0.0, =0.3.3, =1.0.0, =1.14.1, =1.0.0, =1.2.1, =0.1.4, =0.0.1, =0.0.1, =1.0.0, =0.1.0, =1.0.0, =0.0.1, =0.3.0, =0.3.6 and more Source cves: CVE-2025-66414 Source advisory: SNYK:JS-MODELCONTEXTPROTOCOLSDK-14171914...

EUVD-2025-200274

Model Context Protocol MCP TypeScript SDK does not enable DNS rebinding protection by default...

EUVD-2025-200116

MCP Watch has a Critical Command Injection in cloneRepo allows Remote Code Execution RCE via malicious URL...

Model Context Protocol Python SDK 安全漏洞

Model Context Protocol Python SDK is a Model Context Protocol open source development tool for Model Context Protocol servers and clients. A security vulnerability exists in the Model Context Protocol Python SDK prior to version 1.23.0, which stems from the fact that DNS rebinding protection is n...

PT-2025-48747

Name of the Vulnerable Software and Affected Versions mcp versions prior to 1.23.0 Description The mcp Python SDK does not enable DNS rebinding protection by default for HTTP-based servers. If an HTTP-based MCP server is running on localhost without authentication, using FastMCP with streamable...

PT-2025-48746

Name of the Vulnerable Software and Affected Versions MCP TypeScript SDK versions prior to 1.24.0 Description The Model Context Protocol MCP TypeScript SDK does not enable DNS rebinding protection by default for HTTP-based servers. If an HTTP-based MCP server is running on localhost without...

CVE-2025-66401

MCP Watch is a comprehensive security scanner for Model Context Protocol MCP servers. In 0.1.2 and earlier, the MCPScanner class contains a critical Command Injection vulnerability in the cloneRepo method. The application passes the user-supplied githubUrl argument directly to a system shell via...

CVE-2025-66401

MCP Watch vulnerability (CVE-2025-66401) affects MCPWatch

CVE-2025-66401 MCP Watch has a Critical Command Injection in cloneRepo allows Remote Code Execution (RCE) via malicious URL

MCP Watch is a comprehensive security scanner for Model Context Protocol MCP servers. In 0.1.2 and earlier, the MCPScanner class contains a critical Command Injection vulnerability in the cloneRepo method. The application passes the user-supplied githubUrl argument directly to a system shell via...

PT-2025-48575

Name of the Vulnerable Software and Affected Versions MCP Watch versions 0.1.2 and earlier Description MCP Watch, a security scanner for Model Context Protocol MCP servers, contains a Command Injection issue in the cloneRepo method of the MCPScanner class. The application directly passes the...

LeechHijack: Covert Computational Resource Exploitation in Intelligent Agent Systems

Large Language Model LLM-based agents have demonstrated remarkable capabilities in reasoning, planning, and tool usage. The recently proposed Model Context Protocol MCP has emerged as a unifying framework for integrating external tools into agent systems, enabling a thriving open ecosystem of...

MCP Watch 操作系统命令注入漏洞

MCP Watch is a comprehensive security scanning program for Model Context Protocol servers by the individual developer Kapil Duraphe. An operating system command injection vulnerability exists in MCP Watch version 0.1.2 and earlier, which stems from command injection and could lead to arbitrary...

Hiding in the AI Traffic: Abusing MCP for LLM-Powered Agentic Red Teaming

Generative AI is reshaping offensive cybersecurity by enabling autonomous red team agents that can plan, execute, and adapt during penetration tests. However, existing approaches face trade-offs between generality and specialization, and practical deployments reveal challenges such as...

Chinese Hackers Use Anthropic's AI to Launch Automated Cyber Espionage Campaign

State-sponsored threat actors from China used artificial intelligence AI technology developed by Anthropic to orchestrate automated cyber attacks as part of a "highly sophisticated espionage campaign" in mid-September 2025. "The attackers used AI's 'agentic' capabilities to an unprecedented degre...

INTERN(al) MSRC variant hunting: From multi-tenant authorization to Model Context Protocol

When security researchers submit a vulnerability report to MSRC, the Vulnerabilities and Mitigations V&M team reviews it, reproduces the issue, and determines severity. The team reviews all submissions from internal and external security researchers...

CVE-2025-64109

Cursor is a code editor built for programming with AI. In versions and below, a vulnerability in the Cursor CLI Beta allowed an attacker to achieve remote code execution through the MCP Model Context Protocol server mechanism by uploading a malicious MCP configuration in .cursor/mcp.json file in ...