https://vulnerability.circl.lu/rss/recent/all/10 Most recent entries from all 2026-09-29T22:16:51.519432+00:00 Vulnerability-Lookup info@circl.lu python-feedgen Contains only the most 10 recent entries. https://vulnerability.circl.lu/vuln/cve-2025-10193 CVE-2025-10193 — Neo4j Cypher MCP server is vulnerable to DNS rebinding attacks 2026-09-29T22:16:51.778355+00:00

Affected: neo4j-cypher MCP server

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.

 https://vulnerability.circl.lu/vuln/ghsa-vcqx-v2mg-7chx GHSA-vcqx-v2mg-7chx — Neo4j Cypher MCP server is vulnerable to DNS rebinding 2026-09-29T22:16:51.778513+00:00

Affected: PyPI: mcp-neo4j-cypher

### 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/).