CVE-2025-10193

Neo4j Cypher MCP server is vulnerable to DNS rebinding attacks

State: Published
Severity: 7.4 High
Published: Sep 11, 2025
Updated: Feb 26, 2026
Reserved: Sep 9, 2025

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.

Scores

CVSS	Score	Vector	Source
4.0	7.4 High	CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/AU:N/V:D/RE:L/U:Amber	Neo4j

Weaknesses

CWE-346 Origin Validation Error

Affected Products

Product	Versions
neo4j-cypher MCP serverneo4j	0.2.2 through 0.3.1Affected

References

https://neo4j.com/security/cve-2025-10193vendor-advisory
https://github.com/neo4j-contrib/mcp-neo4j/security/advisories/GHSA-vcqx-v2mg-7chxthird-party-advisory
https://github.com/neo4j-contrib/mcp-neo4j/releases/tag/mcp-neo4j-cypher-v0.4.0release-notes

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