csirt@kutim:~/threat-intel/cve/CVE-2026-6402

Katalog CVE

CVSS 6.5 · Medium EPSS 0,35%

Kerentanan Exposed Dangerous Method or Function pada webpack.js webpack-dev-server. Skor CVSS 3.1 6.5 (Medium) menurut NVD.

Deskripsi (NVD)

webpack-dev-server versions up to and including 5.2.3 are vulnerable to cross-origin source code exposure when serving over a non-potentially trustworthy origin such as plain HTTP. The previous fix relied on the Sec-Fetch-Mode and Sec-Fetch-Site request headers, which browsers omit for non-trustworthy origins, allowing a malicious site to load the bundled source as a script and read it across origins. Impact: an attacker controlling a website visited by a developer running webpack-dev-server can recover the application source code when the dev server runs over HTTP at a guessable host and port. Chromium based browsers from Chrome 142 onward are not affected due to local network access restrictions. Upgrade to webpack-dev-server 5.2.4 or later, which sets Cross-Origin-Resource-Policy: same-origin on responses.

Rincian

Terbit di NVD
12 Mei 2026
Terakhir diubah
17 Juni 2026
Status NVD
Analyzed
CVSS 3.1
6.5 (Medium), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N · uraikan di kalkulator
Jenis kelemahan (CWE)
CWE-749: Exposed Dangerous Method or Function
EPSS (30 hari)
0,35% peluang dieksploitasi; lebih tinggi dari 27,0% CVE lain

Produk dan versi terdampak

VendorProdukVersi terdampak
webpack.js webpack-dev-server Semua versi sebelum 5.2.4

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

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.