CVE-2026-35402: NEO4J-Contrib Mcp-NEO4J

Low severity, CVSS 2.3. EPSS: 0.4% chance of exploitation in the next 30 days.

mcp-neo4j-cypher is an MCP server for executing Cypher queries against Neo4j databases. In versions prior to 0.6.0, the read_only mode enforcement can be bypassed using APOC CALL procedures, potentially allowing unauthorized write operations or server-side request forgery. This issue is fixed in version 0.6.0.

Affected products

• NEO4J-Contrib Mcp-NEO4J: before 0.6.0 (fixed in 0.6.0)

Published 2026-04-17. Last modified 2026-06-17.