CVE-2026-30951: Sequelizejs Sequelize

High severity, CVSS 7.5. EPSS: 0.5% chance of exploitation in the next 30 days.

Sequelize is a Node.js ORM tool. Prior to 6.37.8, there is SQL injection via unescaped cast type in JSON/JSONB where clause processing. The _traverseJSON() function splits JSON path keys on :: to extract a cast type, which is interpolated raw into CAST(... AS <type>) SQL. An attacker who controls JSON object keys can inject arbitrary SQL and exfiltrate data from any table. This vulnerability is fixed in 6.37.8.

Affected products

• Sequelizejs Sequelize: before 6.37.8 (fixed in 6.37.8)

Published 2026-03-10. Last modified 2026-07-15.