CVE-2026-56351

n8n - SQL Injection in MySQL, PostgreSQL, and Microsoft SQL Nodes

CVSS 5.3 MEDIUMEPSS 0.2%CWE-89

Vexday Risk Score

13Baixo

Decisão SSVC (CISA)

Track

Sem sinal de exploração → monitorar

CVSS 5.3EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado

Ciclo de vida

24 jun 2026Publicada no NVD

Recomendação: Monitorar — sem sinal de exploração no momento.

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:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N

Produtos afetados

n8n · n8n

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Referências

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