Fiche vulnérabilité
CVE-2026-34221 : faille critique mikro-orm mikroorm (CVSS 9.1)
Description
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.
En bref
- Sévérité
- Critique (CVSS 9.1)
- Vecteur CVSS
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
- Exploitation active
- Non signalée par la CISA
- Publication
- 31 mars 2026
- Dernière mise à jour
- 24 juil. 2026
Produits concernés
- mikro-orm mikroorm