What is GHSA-vcqx-v2mg-7chx?

GHSA-vcqx-v2mg-7chx is a security advisory published by GitHub Security Advisories with High severity. Neo4j Cypher MCP server is vulnerable to DNS rebinding

Which CVE IDs does GHSA-vcqx-v2mg-7chx cover?

GHSA-vcqx-v2mg-7chx covers the following CVE IDs: CVE-2025-10193. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

Which products are affected by GHSA-vcqx-v2mg-7chx?

GHSA-vcqx-v2mg-7chx affects 1 product, including: pip/mcp-neo4j-cypher:\u003e= 0.2.2, \u003c 0.4.0.

GHSA-vcqx-v2mg-7chxHigh

Neo4j Cypher MCP server is vulnerable to DNS rebinding

Vendor

GitHub Security Advisories

Published

September 11, 2025

Last Modified

September 11, 2025

🔗 CVE IDs covered (1)

CVE-2025-10193 →

📋 Description

Impact

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.

Patches

CORS Middleware added to Cypher MCP server v0.4.0 that blocks all web-based access by default.

Workarounds

If you cannot upgrade to v0.4.0 and above, use stdio mode.

References

Vendor Advisory https://www.cve.org/CVERecord?id=CVE-2025-10193

Credits We want to publicly recognize the contribution of Evan Harris from mcpsec.dev for reporting this issue and following the responsible disclosure policy.

🎯 Affected products1

pip/mcp-neo4j-cypher:>= 0.2.2, < 0.4.0