Insufficient Granularity of Access Control Affecting mcp-neo4j-cypher package, versions [,0.6.0)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published24 Apr 2026
- disclosed17 Apr 2026
- creditYotam Perkal
Introduced: 17 Apr 2026
CVE-2026-35402 (opens in a new tab)How to fix?
Upgrade mcp-neo4j-cypher to version 0.6.0 or higher.
Overview
mcp-neo4j-cypher is an A simple Neo4j MCP server
Affected versions of this package are vulnerable to Insufficient Granularity of Access Control in the read_only mode in CALL procedures. An attacker can perform unauthorized actions and potentially access internal resources by bypassing intended access restrictions through the use of specific APOC procedures.