How severe is CVE-2026-35402?

CVE-2026-35402 has a CVSS 4.0 base score of 2.3, rated low severity.

Is CVE-2026-35402 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-35402?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-35402 have an EU (EUVD) identifier?

Yes. CVE-2026-35402 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-23518.

When was CVE-2026-35402 published?

CVE-2026-35402 was published on 2026-04-17 and last updated on 2026-06-17.

CVE-2026-35402

CVE-2026-35402 is a low-severity vulnerability with a CVSS 4.0 base score of 2.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-284.

Key facts

Severity: Low (CVSS 4.0 base score 2.3)
EPSS exploit prediction: 0% (18th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-23518
Weakness: CWE-284
Published: 2026-04-17
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-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 issue is fixed in version 0.6.0.
How severe is CVE-2026-35402?: CVE-2026-35402 has a CVSS 4.0 base score of 2.3, rated low severity.
Is CVE-2026-35402 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (18th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-35402?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-35402 have an EU (EUVD) identifier?: Yes. CVE-2026-35402 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-23518.
When was CVE-2026-35402 published?: CVE-2026-35402 was published on 2026-04-17 and last updated on 2026-06-17.

References

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