CVE-2026-82333

Katalog CVE

CVSS 7.5 · High EPSS 0,49%

Kerentanan Uncontrolled Resource Consumption pada expressjs multer. Skor CVSS 3.1 7.5 (High) menurut CNA.

Deskripsi (NVD)

multer is a middleware for handling multipart/form-data in Node.js. A small multipart request with two specially crafted text field names can make multer's field parser synchronously iterate a maximum-length sparse array, blocking the event loop so the process cannot handle other requests. A large numeric array index in the first field allocates a maximum-length sparse array, and a second field with a non-numeric key then triggers a full-length iteration inside the append-field dependency. All versions before 2.3.0 are affected, and this is a remotely triggerable denial of service. multer 2.3.0 adds an opt-in fieldArrayIndexLimit option that rejects oversized array indexes. Upgrade to multer 2.3.0 and set limits.fieldArrayIndexLimit to the largest array index your application needs to remediate.

Rincian

Terbit di NVD

28 Agustus 2026

Terakhir diubah

2 September 2026

Status NVD

Analyzed

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-400: Uncontrolled Resource Consumption

EPSS (30 hari)

0,49% peluang dieksploitasi; lebih tinggi dari 40,2% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://cna.openjsf.org/security-advisories.html advisory vendor
• https://github.com/expressjs/multer/security/advisories/GHSA-535w-7cp7-47q4 advisory vendor