Critical Flaw in Anthropic’s MCP Poses Remote Exploitation Risk for Developer Systems
July 01, 2025
Vulnerability / AI Security
Cybersecurity experts have identified a severe security flaw in Anthropic’s Model Context Protocol (MCP) Inspector project, potentially enabling remote code execution (RCE) and granting attackers total access to affected systems. Identified as CVE-2025-49596, this vulnerability boasts a CVSS score of 9.4 out of 10, indicating a critical risk level. “This represents one of the first significant RCE vulnerabilities within Anthropic’s MCP framework, opening the door to a new wave of browser-based attacks targeting AI development tools,” stated Avi Lumelsky from Oligo Security in a recent report. “With the ability to execute code on a developer’s machine, attackers can compromise sensitive data, install malware, and navigate through networks—posing serious threats to AI teams, open-source initiatives, and enterprises utilizing MCP.” Introduced by Anthropic in November 2024, MCP is an open protocol aimed at standardizing large language model (LLM) applications…