What is CVE-2026-59257?

CVE-2026-59257 is a high-severity vulnerability in N8n, classified under SQL Injection. CVSS score: 8.8/10. Published 2026-07-08.

How severe is CVE-2026-59257?

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

SQL Injection in N8n

CVE-2026-59257

n8n before 1.123.61, 2.x before 2.27.4, and 2.28.x before 2.28.1 contains a SQL injection vulnerability in the legacy MySQL v1 node's executeQuery operation. The operation substitutes evaluated {{ ... }} expression values directly into the…

Vulnerability class: SQL Injection

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 1.123.61, 2.27.4, 0

Weakness classification (CWE)

CWE-89 — SQL Injection

References

disclosure@vulncheck.com (vendor-advisory, Mitigation, Vendor Advisory)
disclosure@vulncheck.com (Third Party Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2026-59257?: CVE-2026-59257 is a high-severity vulnerability in N8n, classified under SQL Injection. CVSS score: 8.8/10. Published 2026-07-08.
How severe is CVE-2026-59257?: High severity. CVSS v3 base score is 8.8 out of 10.