How MCP Servers Can Expose Enterprise Secrets
MCP servers holding AI agent credentials risk secret exposure via plaintext configs, credential sprawl, prompt injection, and over-permissioning; mitigations include centralization and least privilege.
The article examines how Model Context Protocol servers, which hold API keys, tokens, and service-account credentials for AI agents, can leak enterprise secrets. Documented exposure paths include plaintext credentials in config files, ungoverned credential sprawl, prompt injection, over-permissioning, and untrusted third-party servers. It cites CVE-2025-6514 in mcp-remote (400,000+ downloads), where a malicious server triggered OS command injection leading to remote code execution. Recommended mitigations include centralized secret stores, short-lived auto-rotated credentials, least privilege, and human approval for sensitive actions.
- MCP servers concentrate API keys, tokens, and service-account credentials used by AI agents.
- Common risks: plaintext configs, credential sprawl, prompt injection, over-permissioned scopes.
- CVE-2025-6514 in mcp-remote (400,000+ downloads) enabled RCE and credential theft.
- Mitigations: centralized secret stores, short-lived credentials, least privilege, human-in-the-loop.
- CVEs
- CVE-2025-6514
- Vendors
- Anthropic
- Products
- Model Context Protocolmcp-remote
Vulnerabilities mentioned
All| CVE | Vulnerability | CVSS | EPSS | Signals | Published |
|---|---|---|---|---|---|
| CVE-2025-6514 | Critical OS Command Injection in mcp-remote Enables RCE via Untrusted MCP Servers | 9.6 | 78% |
From the original article
5 min read at thehackernews.com
MCP servers can expose enterprise secrets through plaintext configuration files, over-permissioned access and prompt injection, often before security teams even know the server is running. As more organizations adopt AI agents into their systems, that exposure can silently become a major gap in MCP server security.
By @TheHackersNews · thehackernews.com
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