Description

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 raw SQL string without parameterization. When a workflow uses this operation with expression-sourced values and is connected to an externally-reachable trigger (such as a Webhook node), attacker-controlled input reaching those expressions results in SQL injection, allowing execution of arbitrary SQL with the configured MySQL credentials' privileges. The MySQL v2 node, which uses parameterized queries, is not affected.

Severity (CVSS)

Base score5.3
SeverityMedium
VersionCVSS 4.0
VectorCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N
Provided byCNA

Weaknesses

  • CWE-89 — Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

Affected products

VendorProductVersions
n8nn8n0 to <1.123.61; 1.123.61
n8nn8n0 to <2.28.1; 2.28.1
n8nn8n0 to <2.27.4; 2.27.4

References

Authoritative sources

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Generated from the official CVE List on 09 Jul 2026 07:08 UTC.