Information Disclosure and Command Injection in MCP-Neo4j by Neo4j
CVE-2025-56406

7.5HIGH

Key Information:

Vendor

Neo4j

Status
MCP-Neo4j
Vendor
CVE Published:
10 September 2025

What is CVE-2025-56406?

A security issue in MCP-Neo4j version 0.3.0 enables attackers to exploit the SSE service, potentially allowing unauthorized access to sensitive information or the execution of arbitrary commands.

References

https://github.com/neo4j-contrib/mcp-neo4j/issues/124
https://github.com/August829/CVEP/issues/1

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.
CVE-2025-56406 : Information Disclosure and Command Injection in MCP-Neo4j by Neo4j