Authorization Bypass

mcp-neo4j-cypher is vulnerable to Authorization Bypass. The vulnerability is due to the readonly mode enforcement being bypassable using APOC CALL procedures, where unauthorized write operations or server-side request forgery can occur and attackers can exploit this to gain unauthorized access...

Neo4j Labs MCP Servers: SSRF and Data Modification via read_only Mode Bypass Through CALL Procedures

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

GHSA-X3CV-R3G3-FPG9 Neo4j Labs MCP Servers: SSRF and Data Modification via read_only Mode Bypass Through CALL Procedures

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

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...