CVE-2025-10193

Neo4j Cypher MCP server is vulnerable to DNS rebinding attacks

Published Sep 11, 2025 CVSS 4.0 · 7.4 High EPSS < 1% KEV · Not listed
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.

Remediation

Vendor Solution

This issue is fixed in v0.4.0 and all later versions.


Vendor Workaround

Use stdio mode if you cannot upgrade to v0.4.0 and above.

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2025-28908 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.
Github GHSA Github GHSA GHSA-vcqx-v2mg-7chx Neo4j Cypher MCP server is vulnerable to DNS rebinding
History
Type Values Removed Values Added
First Time appeared Neo4j
Neo4j cypher Mcp Server
Neo4j neo4j
Vendors & Products Neo4j
Neo4j cypher Mcp Server
Neo4j neo4j
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title Neo4j Cypher MCP server is vulnerable to DNS rebinding attacks
Weaknesses CWE-346
References
Metrics cvssV4_0

{'score': 7.4, 'vector': '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Neo4j
Published
Updated
Feb 26, 2026, 5:48 PM
Reserved
Sep 9, 2025, 4:04 PM
Status
Deferred
Published
Sep 11, 2025, 2:15 PM
Modified
Jun 17, 2026, 8:27 AM