CVE-2025-10193: Mcp neo4j cypher Neo4j Cypher MCP Server Is Vulnerability

HIGH
Advisory Identifier: GHSA-vcqx-v2mg-7chx
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CWE-346
Published
Advisory Summary

CVE-2025-10193 is a HIGH neo4j cypher mcp server is vulnerability (CWE-346: Origin Validation Error) affecting Mcp neo4j cypher libraries in the PyPI ecosystem. The issue involves neo4j cypher mcp server is vulnerable to dns rebinding. Remediation is available by upgrading affected packages to version 0.4.0.

CVE-2025-10193 at a Glance

CVE Identifier CVE-2025-10193
GHSA Identifier GHSA-vcqx-v2mg-7chx
Severity HIGH
CVSS v3.1 Base Score N/A
CWE Classification CWE-346: Origin Validation Error
Affected Product Mcp neo4j cypher
Package Ecosystem PyPI
Published Date
Last Updated

How to Fix CVE-2025-10193

To remediate this vulnerability, upgrade all affected Mcp neo4j cypher dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

mcp-neo4j-cypher fixed: 0.4.0 
pip install mcp-neo4j-cypher>=0.4.0
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

pip show mcp-neo4j-cypher

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2025-10193, inspect your installed packages using pip:

pip show mcp-neo4j-cypher

Analyze the terminal output to locate any version of Mcp neo4j cypher in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.4.0), your application is affected.

Note: The pip show mcp-neo4j-cypher command checks currently installed packages in your active Python environment.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-346: Origin Validation Error, where the product does not properly verify that the source of data or communication is valid. In Mcp neo4j cypher, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

### 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://neo4j.com/security/cve-2025-10193) https://www.cve.org/CVERecord?id=CVE-2025-10193 Credits We want to publicly recognize the contribution of Evan Harris from [mcpsec.dev](https://mcpsec.dev/) for reporting this issue and following the responsible disclosure [policy](https://neo4j.com/trust-center/responsible-disclosure/).

CVE-2025-10193 Affected Mcp neo4j cypher Versions

1 component(s)
Fixed Versions:
0.4.0
Product / Package Ecosystem Affected Versions Fixed Version
mcp-neo4j-cypher
pypi/mcp-neo4j-cypher
PyPI
≥ 0.2.2
< 0.4.0
0.4.0

References

GitHub Advisory / Wiki ADVISORY
https://github.com/neo4j-contrib/mcp-neo4j/security/advisories/GHSA-vcqx-v2mg-7chx
NVD — CVE-2025-10193 NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-10193
Mcp neo4j cypher Source Repository REPOSITORY
https://github.com/neo4j-contrib/mcp-neo4j/pull/165
Security Fix Commit FIX COMMIT
https://github.com/neo4j-contrib/mcp-neo4j/commit/5b9fbdda6401668d7aa006daf7e644805c067c15
Mcp neo4j cypher Source Repository REPOSITORY
https://github.com/neo4j-contrib/mcp-neo4j
Mcp neo4j cypher Release RELEASE
https://github.com/neo4j-contrib/mcp-neo4j/releases/tag/mcp-neo4j-cypher-v0.4.0
Mcp neo4j cypher Security Information SECURITY
https://neo4j.com/security/cve-2025-10193

Frequently Asked Questions

What is CVE-2025-10193?
CVE-2025-10193 is a security vulnerability in Mcp neo4j cypher involving Neo4j Cypher MCP server is vulnerable to DNS rebinding under CWE-346: Origin Validation Error.
Which Mcp neo4j cypher versions are affected?
Affected versions include releases prior to 0.4.0 across affected packages: mcp-neo4j-cypher.
What version fixes CVE-2025-10193?
Upgrading to 0.4.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is mcp-neo4j-cypher affected?
Yes, mcp-neo4j-cypher is affected in releases prior to 0.4.0. Upgrade your dependency to 0.4.0 or later.
What CWE is associated with CVE-2025-10193?
CVE-2025-10193 is classified under CWE-346: Origin Validation Error (The product does not properly verify that the source of data or communication is valid.).
How can I check PyPI dependencies for CVE-2025-10193?
Run the dependency tree command: 'pip show mcp-neo4j-cypher'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-vcqx-v2mg-7chx",
  "modified" : "2025-09-11T23:26:00Z",
  "published" : "2025-09-11T23:26:00Z",
  "aliases" : [ "CVE-2025-10193" ],
  "summary" : " Neo4j Cypher MCP server is vulnerable to DNS rebinding ",
  "details" : "### Impact\nDNS 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.&nbsp;The attack relies on the user being enticed to visit a malicious website and spend sufficient time there for DNS rebinding to succeed.\n\n### Patches\nCORS Middleware added to Cypher MCP server v0.4.0 that blocks all web-based access by default.\n\n### Workarounds\nIf you cannot upgrade to v0.4.0 and above, use stdio mode.\n\n### References\n[Vendor Advisory](https://neo4j.com/security/cve-2025-10193)\nhttps://www.cve.org/CVERecord?id=CVE-2025-10193 \n\nCredits\nWe want to publicly recognize the contribution of Evan Harris from [mcpsec.dev](https://mcpsec.dev/) for reporting this issue and following the responsible disclosure [policy](https://neo4j.com/trust-center/responsible-disclosure/).",
  "severity" : [ {
    "type" : "CVSS_V4",
    "score" : "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"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "mcp-neo4j-cypher"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0.2.2"
      }, {
        "fixed" : "0.4.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/neo4j-contrib/mcp-neo4j/security/advisories/GHSA-vcqx-v2mg-7chx"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-10193"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/neo4j-contrib/mcp-neo4j/pull/165"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/neo4j-contrib/mcp-neo4j/commit/5b9fbdda6401668d7aa006daf7e644805c067c15"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/neo4j-contrib/mcp-neo4j"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/neo4j-contrib/mcp-neo4j/releases/tag/mcp-neo4j-cypher-v0.4.0"
  }, {
    "type" : "WEB",
    "url" : "https://neo4j.com/security/cve-2025-10193"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-346" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-09-11T23:26:00Z",
    "nvd_published_at" : "2025-09-11T14:15:40Z"
  }
}