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CVE-2026-35402

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

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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.

CVSS 2.3 · Low · EPSS 0.3% · Fix available

Published
Updated

Stack: python

Affected products and versions

  • mcp-neo4j

    Versions
    • < 0.6.0: Affected

    No fix published

  • mcp-neo4j-cypher PyPI

    Versions
    • 0.1.1
    • 0.2.0
    • 0.2.1
    • 0.2.2
    • 0.2.3
    • 0.2.4
    • 0.3.0
    • 0.3.1
    • 0.4.0
    • 0.4.1
    • 0.5.0
    • 0.5.1
    • 0.5.2
    • 0.5.3
    Affected ranges
    • ECOSYSTEM: < 0.6.0

    Update to 0.6.0

Original sources

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