Path Traversal

What Happened In our previous analysis, we identified capability laundering in Anthropic’s Memory MCP Server: a “memory storage” tool that could write arbitrary configuration files through unconstrained implementation. This is the second case. The MCP Git Server (mcp-server-git) exposes Git operations to AI agents. The git_init tool accepts arbitrary repo_path values without validation, creating repositories in any filesystem location. Combined with git_diff_staged, this turns a “Git helper” into a credential exfiltration primitive. ...

Discovered a classic path traversal vulnerability in Microsoft’s new Agentic Web protocol (NLWeb) that could expose sensitive files including API keys, credentials, and configuration files. The vulnerability was particularly critical as it could compromise AI agents’ “cognitive engines” by leaking LLM API keys. The research was featured in an exclusive interview with The Verge and subsequently covered by 30+ international media outlets across 15+ countries in 10+ languages, including PCWorld, IT Pro, Neowin, Tom’s Guide, CIO Korea, 3DNews Russia, iSpazio Italy, and Dagens AI Denmark. ...