Insecure credential storage plagues MCP
blog.trailofbits.com | blog | #mcp | #secrets-management | #llm-security | #vulnerabilities | #trail-of-bits | #credential-storage | #api-keys
Summary
This post describes how many examples of MCP software store long-term API keys for third-party services in plaintext on the local filesystem, often with insecure, world-readable permissions.
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--- id: 1403 title: "Insecure credential storage plagues MCP" source_domain: blog.trailofbits.com source_url: "https://blog.trailofbits.com/2025/04/30/insecure-credential-storage-plagues-mcp/" published_at: "2025-04-30 07:00" tags: ["mcp", "secrets-management", "llm-security", "vulnerabilities", "trail-of-bits", "credential-storage", "api-keys"] phying_url: "https://phying.com/item/1403" lang: en --- # Insecure credential storage plagues MCP ## Summary This post describes how many examples of MCP software store long-term API keys for third-party services in plaintext on the local filesystem, often with insecure, world-readable permissions. ## Intelligence Metadata - **Sources:** blog.trailofbits.com - **Published:** 2025-04-30 07:00 - **Original:** https://blog.trailofbits.com/2025/04/30/insecure-credential-storage-plagues-mcp/ - **Phying News:** https://phying.com/item/1403