What is CVE-2026-42233?

CVE-2026-42233 is a critical-severity vulnerability in N8n, classified under SQL Injection. CVSS score: 9.8/10. Published 2026-05-04.

How severe is CVE-2026-42233?

Critical severity. CVSS v3 base score is 9.8 out of 10.

SQL Injection in N8n

CVE-2026-42233

n8n is an open source workflow automation platform. Prior to versions 1.123.32, 2.17.4, and 2.18.1, a flaw in the Oracle Database node's select operation allowed user-controlled input passed into the Limit field via expressions to be inter…

Vulnerability class: SQL Injection

EPSS: 0.001 (17.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/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-r6jc-mpqw-m755 (x_refsource_CONFIRM, Vendor Advisory)

Frequently asked questions

What is CVE-2026-42233?: CVE-2026-42233 is a critical-severity vulnerability in N8n, classified under SQL Injection. CVSS score: 9.8/10. Published 2026-05-04.
How severe is CVE-2026-42233?: Critical severity. CVSS v3 base score is 9.8 out of 10.