Neo4j-contrib

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    CVE-2026-35402

    mcp-neo4j-cypher: SSRF and Data Modification via read_only Mode Bypass Through CALL Procedures

    Last Modified: Apr 20, 2026
    Published: Apr 17, 2026

    CVE-2025-56406

    An issue was discovered in mcp-neo4j 0.3.0 allowing attackers to obtain sensitive information or execute arbitrary commands via the SSE service. NOTE: the Supplier's position is that authentication is not mandatory for MCP servers, and the mcp-neo4j MCP server is only intended for use in a local environment where authentication realistically would not be needed. Also, the Supplier provides middleware to help isolate the MCP server from external access (if needed).

    Last Modified: Apr 15, 2026
    Published: Sep 10, 2025
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    Neo4j-Contrib Vulnerabilities & Security CVEs | CVE-DB