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CVE-2026-54504 affects @andrea9293/mcp-documentation-server version 1.13.0. The product's Web UI and API are exposed on all network interfaces by default, and document-management endpoints do not require authentication. This creates an improper access control condition in which any attacker with network reachability to the service can interact directly with the document-management functionality without credentials. Successful exploitation allows unauthorized access to document enumeration, document retrieval, corpus search, document insertion, deletion, and modification of the local knowledge base used by the MCP assistant.
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