Overview
The CVE-2025-56406 vulnerability affects the mcp-neo4j 0.3.0 system, exposing it to potential attacks that can compromise the system or leak data. This vulnerability is significant due to the potential for attackers to execute arbitrary commands or obtain sensitive information via the SSE service, even in the absence of mandatory authentication.
Vulnerability Summary
CVE ID: CVE-2025-56406
Severity: High – 7.5 CVSS
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: System Compromise or Data Leakage
Affected Products
A new way to communicate
Ameeba Chat is built on encrypted identity, not personal profiles.
Message, call, share files, and coordinate with identities kept separate.
- • Encrypted identity
- • Ameeba Chat authenticates access
- • Aliases and categories
- • End-to-end encrypted chat, calls, and files
- • Secure notes for sensitive information
Private communication, rethought.
Product | Affected Versions
mcp-neo4j | 0.3.0
How the Exploit Works
The CVE-2025-56406 vulnerability allows an attacker to gain unauthorized access to the mcp-neo4j 0.3.0 system. The vulnerability lies in the lack of authentication required for the MCP servers, giving attackers the ability to execute arbitrary commands or obtain sensitive information through the SSE service.
Conceptual Example Code
An example of how this vulnerability might be exploited could involve a malicious HTTP request, as shown below:
GET /vulnerable/SSEService HTTP/1.1
Host: target.example.com
{ "command": "execute_arbitrary_command_or_retrieve_sensitive_info" }In this conceptual example, the attacker sends a GET request to the vulnerable SSE service endpoint. The malicious command provided in the request could result in the execution of an arbitrary command or the retrieval of sensitive information from the server.