CVE-2026-34221

Katalog CVE

CVSS 9.1 · Critical EPSS 0,51%

Kerentanan Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution') pada mikro-orm mikroorm. Skor CVSS 3.1 9.1 (Critical) menurut NVD.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

31 Maret 2026

Terakhir diubah

24 Juli 2026

Status NVD

Analyzed

CVSS 3.1

9.1 (Critical), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

EPSS (30 hari)

0,51% peluang dieksploitasi; lebih tinggi dari 41,9% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/mikro-orm/mikro-orm/security/advisories/GHSA-qpfv-44f3-qqx6 advisory vendor