CVE-2026-35402
mcp-neo4j-cypher: SSRF and Data Modification via read_only Mode Bypass Through CALL Procedures
- State
- Published
- Severity
- 2.3 Low
- Published
- Apr 17, 2026
- Updated
- Apr 20, 2026
- Reserved
- Apr 2, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 2.3 Low | CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N | GitHub_M |
Weaknesses
- CWE-284 Improper Access Control
Affected Products
| Product | Versions |
|---|---|
mcp-neo4jneo4j-contrib |
|
References
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