CVE-2026-35402

LOW

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

Title source: cna
STIX 2.1

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.

References (2)

Scores

CVSS v4 2.3
EPSS 0.0004
EPSS Percentile 13.0%
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

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-284
Status published
Products (2)
neo4j-contrib/mcp-neo4j < 0.6.0
pypi/mcp-neo4j-cypher 0 - 0.6.0PyPI
Published Apr 17, 2026
Tracked Since Apr 18, 2026