NVD Vulnerability Detail
Search Exploit, PoC
CVE-2026-56351
Summary

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.

Publication Date June 24, 2026, 10:16 p.m.
Registration Date June 27, 2026, 4:18 a.m.
Last Update June 26, 2026, 11:01 a.m.
CVSS3.1 : CRITICAL
スコア 9.6
Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
攻撃元区分(AV) ネットワーク
攻撃条件の複雑さ(AC)
攻撃に必要な特権レベル(PR)
利用者の関与(UI) 不要
影響の想定範囲(S) 変更あり
機密性への影響(C)
完全性への影響(I)
可用性への影響(A) なし
Affected software configurations
Configuration1 or higher or less more than less than
cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:* 2.4.0
Related information, measures and tools
Common Vulnerabilities List