{"id":"CVE-2025-10193","aliases":["GHSA-vcqx-v2mg-7chx","PYSEC-2026-1620"],"title":" Neo4j Cypher MCP server is vulnerable to DNS rebinding ","summary":" Neo4j Cypher MCP server is vulnerable to DNS rebinding ","severity":"high","vendor":"mcp-neo4j-cypher","product":"mcp-neo4j-cypher","ecosystem":"pip","affected":["mcp-neo4j-cypher >= 0.2.2, < 0.4.0"],"patched":["mcp-neo4j-cypher 0.4.0"],"published":"2025-09-11","updated":"2026-07-07","source":"OSV","sourceUrl":"https://osv.dev/vulnerability/GHSA-vcqx-v2mg-7chx","references":[{"url":"https://github.com/neo4j-contrib/mcp-neo4j/security/advisories/GHSA-vcqx-v2mg-7chx"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-10193"},{"url":"https://github.com/neo4j-contrib/mcp-neo4j/pull/165"},{"url":"https://github.com/neo4j-contrib/mcp-neo4j/commit/5b9fbdda6401668d7aa006daf7e644805c067c15"},{"url":"https://github.com/neo4j-contrib/mcp-neo4j"},{"url":"https://github.com/neo4j-contrib/mcp-neo4j/releases/tag/mcp-neo4j-cypher-v0.4.0"},{"url":"https://neo4j.com/security/cve-2025-10193"}],"tags":["osv","pip"],"epss":0.00221,"epssPercentile":0.12834,"ingestedAt":"2026-07-08T18:25:53.307Z","slug":"CVE-2025-10193","body":"## Overview\n\n### 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/).\n\n## Affected packages\n\n- `mcp-neo4j-cypher >= 0.2.2, < 0.4.0`\n\n## Remediation\n\nUpgrade to a patched release:\n\n- `mcp-neo4j-cypher 0.4.0`","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}