CVE-2026-35402

UNKNOWN 0.0

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

CVSS Score

0.0

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-284
Vendor	neo4j-contrib
Product	mcp-neo4j
Published	Apr 17, 2026

Stay Ahead of the Next One

Get instant alerts for neo4j-contrib mcp-neo4j

Be the first to know when new unknown vulnerabilities affecting neo4j-contrib mcp-neo4j are published — delivered to Slack, Telegram or Discord.

Get Free Alerts → Free · No credit card · 60 sec setup

Affected Versions

neo4j-contrib / mcp-neo4j

< 0.6.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/neo4j-contrib/mcp-neo4j/security/advisories/GHSA-x3cv-r3g3-fpg9 github.com: https://github.com/neo4j-contrib/mcp-neo4j/releases/tag/mcp-neo4j-cypher-v0.6.0