{"id":"CVE-2025-10193","aliases":["GHSA-vcqx-v2mg-7chx","PYSEC-2026-1620"],"url":"https://o3.security/vulnerability/CVE-2025-10193","summary":"Neo4j Cypher MCP server is vulnerable to DNS rebinding attacks","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. 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/).","published":"2025-09-11T14:05:30.592Z","modified":"2026-08-12T03:51:21.257101239Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"mcp-neo4j-cypher","fixedVersion":"0.4.0"}],"fix":{"url":"https://github.com/neo4j-contrib/mcp-neo4j/pull/165","label":"neo4j-contrib/mcp-neo4j#165"},"references":[{"type":"WEB","url":"https://pypi.python.org"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/10xxx/CVE-2025-10193.json"},{"type":"ADVISORY","url":"https://github.com/neo4j-contrib/mcp-neo4j/releases/tag/mcp-neo4j-cypher-v0.4.0"},{"type":"ADVISORY","url":"https://github.com/neo4j-contrib/mcp-neo4j/security/advisories/GHSA-vcqx-v2mg-7chx"},{"type":"ADVISORY","url":"https://neo4j.com/security/cve-2025-10193"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-10193"},{"type":"PACKAGE","url":"https://github.com/neo4j-contrib/mcp-neo4j"},{"type":"WEB","url":"https://github.com/neo4j-contrib/mcp-neo4j/pull/165"},{"type":"WEB","url":"https://github.com/neo4j-contrib/mcp-neo4j/commit/5b9fbdda6401668d7aa006daf7e644805c067c15"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:21.257101239Z"}}