CVE-2026-93753

Katalog CVE

CVSS 7.5 · High EPSS 0,51%

Kerentanan Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution'). Skor CVSS 3.1 7.5 (High) menurut vulncheck.com.

Deskripsi (NVD)

deepmerge through 4.3.1 contains a prototype poisoning vulnerability in the mergeObject() function that fails to properly validate keys being written to target objects. Attackers can supply malicious source objects in merge operations to inject attacker-controlled properties into the returned object's prototype, causing applications to inherit unintended values when accessing properties without own-property checks.

Rincian

Terbit di NVD

18 September 2026

Terakhir diubah

23 September 2026

Status NVD

Deferred

CVSS 3.1

7.5 (High), sumber vulncheck.com
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N · 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 42,1% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://github.com/TehShrike/deepmerge
• https://github.com/TehShrike/deepmerge/blob/5b87756a5671635679001cbac72aa42f23472c81/index.js#L39-L60
• https://github.com/TehShrike/deepmerge/issues/273
• https://www.vulncheck.com/advisories/deepmerge-through-4.3.1-prototype-poisoning-via-mergeobject