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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
n8n n8n
Default version status: unaffected
0 to < 1.123.61affected1.123.61unaffected
pkg:npm/n8nn8n n8n
Default version status: unaffected
2.28.0 to < 2.28.1affected2.28.1unaffected
pkg:npm/n8nn8n n8n
Default version status: unaffected
2.0.0-rc.0 to < 2.27.4affected2.27.4unaffected
pkg:npm/n8n