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CVE-2026-34221

MikroORM has Prototype Pollution in Utils.merge

MikroORM is a TypeScript ORM for Node.js based on Data Mapper, Unit of Work and Identity Map patterns. Prior to versions 6.6.10 and 7.0.6, a prototype pollution vulnerability exists in the Utils.merge helper used internally by MikroORM when merging object structures. The function did not prevent special keys such as __proto__, constructor, or prototype, allowing attacker-controlled input to modify the JavaScript object prototype when merged. This issue has been patched in versions 6.6.10 and 7.0.6.

CVSS 4.0 · 8.3 High EPSS < 1% KEV · Not listed
Vendors
Mikro-orm
Products
Mikro-orm Mikroorm
CVE-2026-34220

MikroORM is vulnerable to SQL Injection via specially crafted object

MikroORM is a TypeScript ORM for Node.js based on Data Mapper, Unit of Work and Identity Map patterns. Prior to versions 6.6.10 and 7.0.6, there is a SQL injection vulnerability when specially crafted objects are interpreted as raw SQL query fragments. This issue has been patched in versions 6.6.10 and 7.0.6.

CVSS 4.0 · 9.3 Critical EPSS < 1% KEV · Not listed
Vendors
Mikro-orm
Products
Mikro-orm Mikroorm