DNS Rebinding in Neo4j Cypher MCP Enables SOP Bypass
CVE-2025-10193 Published on September 11, 2025

Neo4j Cypher MCP server is vulnerable to DNS rebinding attacks
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.

Vendor Advisory NVD

Vulnerability Analysis

CVE-2025-10193 can be exploited with network access. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity and availability.

Attack Vector:
NETWORK
Attack Complexity:
HIGH
Privileges Required:
NONE
User Interaction:
ACTIVE

Weakness Type

Origin Validation Error

The software does not properly verify that the source of data or communication is valid.


Affected Versions

neo4j-cypher MCP server:

Exploit Probability

EPSS
0.22%
Percentile
11.72%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.