CVE-2025-10193
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-09-11

Last updated on: 2025-09-11

Assigner: Neo4j

Description
DNS rebinding vulnerability in Neo4j Cypher MCP server allows malicious websites to bypass Same-Origin Policy protections and execute unauthorised tool invocations against locally running Neo4j MCP instances. The attack relies on the user being enticed to visit a malicious website and spend sufficient time there for DNS rebinding to succeed.
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Meta Information
Published
2025-09-11
Last Modified
2025-09-11
Generated
2026-06-16
AI Q&A
2025-09-11
EPSS Evaluated
2026-06-14
NVD
CVE-2025-10193
EUVD
EUVD-2025-28908
Affected Vendors & Products
Showing 3 associated CPEs
Vendor Product Version / Range
neo4j cypher_mcp_server 0.3.1
neo4j cypher_mcp_server 0.4.0
neo4j cypher_mcp_server 0.2.2
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-346 The product does not properly verify that the source of data or communication is valid.
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Executive Summary

CVE-2025-10193 is a DNS rebinding vulnerability in the Neo4j Cypher MCP server that allows malicious websites to bypass the Same-Origin Policy protections. This enables attackers to execute unauthorized tool invocations against locally running Neo4j MCP instances. The attack requires a user to visit a malicious website and stay there long enough for the DNS rebinding to succeed, exploiting improper origin validation. [1]

Impact Analysis

This vulnerability can lead to unauthorized execution of commands or tool invocations on your local Neo4j MCP server by a malicious website, potentially compromising the confidentiality and integrity of your data. Since no privileges are required and the attack happens via the network with user interaction, it poses a high risk of unauthorized access and manipulation of your Neo4j instance. [1]

Detection Guidance

The provided resources do not include specific detection methods or commands to identify this DNS rebinding vulnerability on your network or system.

Mitigation Strategies

To mitigate this vulnerability, upgrade the Neo4j Cypher MCP server to version 0.4.0 or later, which includes security updates such as CORS middleware that blocks all web-based access by default. If upgrading is not immediately possible, use the stdio transport mode as a workaround. Additionally, configure CORS and Trusted Hosts middleware using the new environment variables or CLI options (`NEO4J_MCP_SERVER_ALLOW_ORIGINS`, `--allow-origins`, `NEO4J_MCP_SERVER_ALLOWED_HOSTS`, `--allowed-hosts`) to restrict access. Applying these steps will help prevent unauthorized tool invocations via DNS rebinding attacks. [1, 2]

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