High 8.2Published Jun 24, 2026

CVE-2026-56351n8n - SQL Injection in MySQL, PostgreSQL, and Microsoft SQL Nodes

Updated under an hour ago (Oct 27, 2026, 7:10 PM ET)

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No exploitation reported and no EPSS estimate yet.

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Every CVE for n8n

Exploited in the last 30 days

n8n before version 2.4.0 contains a sql injection vulnerability in MySQL, PostgreSQL, and Microsoft SQL nodes that allows authenticated users to inject arbitrary SQL through unescaped identifier values in node configuration parameters. Attackers with workflow creation permissions can supply specially crafted table or column names to execute unauthorized database commands and compromise data integrity.

CVSS: 8.2 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N
Weakness (CWE): CWE-89
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Analyzed
Record last updated: Jun 24, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

n8n n8n n8n:n8n (from the name)	before 2.4.0; 2.4.0 not affected	CNA record
n8n n8n n8n:n8n	before 2.4.0	NVD

References

References

https://github.com/n8n-io/n8n/security/advisories/GHSA-f3f2-mcxc-pwjx	vendor-advisory, mitigation
https://www.vulncheck.com/advisories/n8n-sql-injection-in-mysql-postgresql-and-microsoft-sql-nodes	third-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.