CVE-2021-43803: vercel next.js

csirt@kutim:~/threat-intel/cve/CVE-2021-43803

CVSS 7.5 · High EPSS 47,3%

Kerentanan Improper Input Validation pada vercel next.js. Skor CVSS 3.1 7.5 (High) menurut github.com.

Deskripsi (NVD)

Next.js is a React framework. In versions of Next.js prior to 12.0.5 or 11.1.3, invalid or malformed URLs could lead to a server crash. In order to be affected by this issue, the deployment must use Next.js versions above 11.1.0 and below 12.0.5, Node.js above 15.0.0, and next start or a custom server. Deployments on Vercel are not affected, along with similar environments where invalid requests are filtered before reaching Next.js. Versions 12.0.5 and 11.1.3 contain patches for this issue.

Rincian

Terbit di NVD: 10 Desember 2021
Terakhir diubah: 17 Juni 2026
Status NVD: Modified
CVSS 3.1: 7.5 (High), sumber github.com
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-20: Improper Input Validation
EPSS (30 hari): 47,3% peluang dieksploitasi; lebih tinggi dari 98,8% CVE lain

Produk dan versi terdampak

Vendor	Produk	Versi terdampak
vercel	next.js	Versi 11.1.0 hingga sebelum 11.1.3
vercel	next.js	Versi 12.0.0 hingga sebelum 12.0.5

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

https://github.com/vercel/next.js/commit/6d98b4fb4315dec1badecf0e9bdc212a4272b264 patch · advisory pihak ketiga
https://github.com/vercel/next.js/pull/32080 patch · advisory pihak ketiga
https://github.com/vercel/next.js/security/advisories/GHSA-25mp-g6fv-mqxx patch · advisory pihak ketiga
https://github.com/vercel/next.js/releases/tag/v11.1.3 release notes · advisory pihak ketiga
https://github.com/vercel/next.js/releases/v12.0.5 release notes · advisory pihak ketiga

Sumber: NVD · CVE.org · EPSS. Halaman ini disusun otomatis dari data tersebut; pembaruan terakhir 5 Okt 2026, 20:10 WITA. Kalau sistem di Perangkat Daerah memakai produk ini dan butuh bantuan, laporkan lewat kanal pelaporan.