CVE-2026-14631: webpack.js webpack-dev-server

csirt@kutim:~/threat-intel/cve/CVE-2026-14631

CVSS 5.3 · Medium EPSS 0,52%

Kerentanan Improper Input Validation pada webpack.js webpack-dev-server. Skor CVSS 3.1 5.3 (Medium) menurut CNA.

Deskripsi (NVD)

webpack-dev-server versions 5.2.5 and earlier terminate the whole Node.js process when an unauthenticated peer sends either a normal HTTP request with a malformed Host header or a WebSocket upgrade to the default /ws endpoint with a malformed Origin header. The malformed value causes an uncaught exception in the host-validation path and crashes the dev server. Impact is limited to availability of the development server, no data disclosure, no code execution. Patches: upgrade to webpack-dev-server 5.2.6. Workarounds: keep the dev server bound to localhost (the default) and do not expose it to untrusted networks.

Rincian

Terbit di NVD: 3 Juli 2026
Terakhir diubah: 7 Juli 2026
Status NVD: Analyzed
CVSS 3.1: 5.3 (Medium), sumber CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L · uraikan di kalkulator
Jenis kelemahan (CWE): CWE-20: Improper Input Validation
CWE-248: Uncaught Exception
EPSS (30 hari): 0,52% peluang dieksploitasi; lebih tinggi dari 42,3% CVE lain

Produk dan versi terdampak

Vendor	Produk	Versi terdampak
webpack.js	webpack-dev-server	Semua versi sebelum 5.2.6

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

https://github.com/webpack/webpack-dev-server/security/advisories/GHSA-m28w-2pqf-7qgj mitigasi · advisory vendor · patch
https://cna.openjsf.org/security-advisories.html advisory pihak ketiga

Sumber: NVD · CVE.org · EPSS. Halaman ini disusun otomatis dari data tersebut; pembaruan terakhir 5 Okt 2026, 20:11 WITA. Kalau sistem di Perangkat Daerah memakai produk ini dan butuh bantuan, laporkan lewat kanal pelaporan.