CVE-2025-56406

HighCVSS 7.5/10Last modified Jun 17, 2026

Description

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).

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Weakness enumeration

CWE-77CWE-200CWE-284

Affected software

No affected versions have been published.

Timeline

Published
Sep 10, 2025
Last modified
Jun 17, 2026
NVD status
Deferred

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