CVE-2026-35402 | THREATINT

Description

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.

PUBLISHED Reserved 2026-04-02 | Published 2026-04-17 | Updated 2026-04-20 | Assigner GitHub_M

LOW: 2.3CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N

Problem types

CWE-284: Improper Access Control

Product status

< 0.6.0

affected

References

github.com/...-neo4j/security/advisories/GHSA-x3cv-r3g3-fpg9

github.com/...mcp-neo4j/releases/tag/mcp-neo4j-cypher-v0.6.0

cve.org (CVE-2026-35402)

nvd.nist.gov (CVE-2026-35402)

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