What is CVE-2026-42237?

CVE-2026-42237 is a high-severity vulnerability in N8n, classified under SQL Injection. CVSS score: 8.8/10. Published 2026-05-04.

How severe is CVE-2026-42237?

High severity. CVSS v3 base score is 8.8 out of 10.

SQL Injection in N8n

CVE-2026-42237

n8n is an open source workflow automation platform. Prior to versions 1.123.32, 2.17.4, and 2.18.1, the fix for GHSA-f3f2-mcxc-pwjx did not cover the Snowflake node or the legacy MySQL v1 node. Both nodes construct SQL queries by directly…

Vulnerability class: SQL Injection

EPSS: 0.000 (9.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

N8n — versions 2.18.0
N8n-io N8n — versions < 1.123.32, >= 2.17.0, < 2.17.4, >= 2.18.0, < 2.18.1

Weakness classification (CWE)

CWE-89 — SQL Injection

References

https://github.com/n8n-io/n8n/security/advisories/GHSA-hp3c-vfpm-q4f7 (x_refsource_CONFIRM, Vendor Advisory)

Frequently asked questions

What is CVE-2026-42237?: CVE-2026-42237 is a high-severity vulnerability in N8n, classified under SQL Injection. CVSS score: 8.8/10. Published 2026-05-04.
How severe is CVE-2026-42237?: High severity. CVSS v3 base score is 8.8 out of 10.