PT-2026-59278

Summary The read only mode in mcp-neo4j-cypher versions prior to 0.6.0 can be bypassed using CALL procedures. Details Impact The enforcing of read only mode in vulnerable versions could be bypassed by certain APOC procedures. Patches v0.6.0 release hardened the checks around the mode. The only wa...

CVE-2026-35402 mcp-neo4j-cypher: SSRF and Data Modification via read_only Mode Bypass Through CALL Procedures

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

CVE-2026-35402 mcp-neo4j-cypher: SSRF and Data Modification via read_only Mode Bypass Through CALL Procedures

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

Origin Validation Error

Overview mcp-neo4j-cypher is an A simple Neo4j MCP server Affected versions of this package are vulnerable to Origin Validation Error via the lack of proper origin validation in the server's request handling. An attacker can execute unauthorized tool invocations against locally running instances ...