CVE-2026-35402 Details
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.
A vulnerability exists in mcp-neo4j-cypher versions prior to 0.6.0, allowing the read-only mode enforcement to be bypassed using APOC CALL procedures. This could lead to unauthorized write operations or server-side request forgery. The issue has been addressed in version 0.6.0.
Users are advised to update to mcp-neo4j-cypher version 0.6.0 or later. Additionally, limit APOC procedures to what is necessary, manage data loading privileges, and avoid relaxing default settings without appropriate controls.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Apr 17, 2026CISA-ADP
Assessed Apr 20, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/neo4j-contrib/mcp-neo4j/releases/tag/mcp-neo4j-cypher-v0.6.0 | [email protected] | Release NotesVendor |
| https://github.com/neo4j-contrib/mcp-neo4j/security/advisories/GHSA-x3cv-r3g3-fpg9 | [email protected] | AdvisoryRemedyVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-284 | Improper Access Control | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| neo4j-contrib mcp-neo4j-cypher | All versions |
CPE
Remediation
| |
Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 17, 2026 | New CVE Received | [email protected] |