Vulnerability · CVE-2026-35402
mcp-neo4j-cypher is an MCP server for executing Cypher queries against Neo4j databases.
Published Apr 17, 2026 · catalog updated Jun 17, 2026 · mcp-neo4j-cypher is an MCP
Check if you run it
No confirmed exploitation is on record for CVE-2026-35402. EPSS is 0.39%. Act only if a listed version of mcp-neo4j-cypher is an MCP is installed.
Gaps on this record
- The stored product name is a package slug. The name on this page is taken from the title (mcp-neo4j-cypher is an MCP).
- No version range is stored. A customer cannot check an installed version against this record.
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
- Severity
- Low2.3
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 0.39%
- Remediation
- Advisory link
- Affected products
- See sources for product scope
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.
No affected version ranges are stored yet. Use the vendor advisory before you decide this record does not apply.
How to fix CVE-2026-35402
Recommended remediation
A patch or advisory reference is linked. Open the original publisher for availability by product version.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
No confirmed exploitation is on record for CVE-2026-35402. EPSS is 0.39%. Act only if a listed version of mcp-neo4j-cypher is an MCP is installed.
Which versions are affected?
Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
CWE-284: Improper Access Control. EPSS 0.39%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Code
The project this record applies to. Exploit listings stay in References.
Timeline
Detection, updates, and resolution for this record.
Apr 17, 2026 · NIST NVD
Detected
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.
Jun 17, 2026 · NIST NVD
Updated
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.
Sources
- CVE.orgVulnerability recordCVE-2026-35402
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2026-35402
30-day exploitation probability 0.4%
first.org - NIST NVDVulnerability recordCVE-2026-35402
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 i
nvd.nist.gov
References
Freshness
Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.