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.
| Package (Ecosystem) | Introduced | Fixed | Limit |
|---|---|---|---|
| mcp-neo4j-cypher(PyPI) | 0.2.2 | 0.4.0 | N/A |
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