CVE-2026-34226

Katalog CVE

CVSS 7.5 · High EPSS 0,59%

Kerentanan Insertion of Sensitive Information Into Sent Data pada capricorn86 happy dom. Skor CVSS 3.1 7.5 (High) menurut github.com.

Deskripsi (NVD)

Happy DOM is a JavaScript implementation of a web browser without its graphical user interface. Versions prior to 20.8.9 may attach cookies from the current page origin (`window.location`) instead of the request target URL when `fetch(..., { credentials: "include" })` is used. This can leak cookies from origin A to destination B. Version 20.8.9 fixes the issue.

Rincian

Terbit di NVD

27 Maret 2026

Terakhir diubah

19 Agustus 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:H/I:N/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-201: Insertion of Sensitive Information Into Sent Data
CWE-359: Exposure of Private Personal Information to an Unauthorized Actor

EPSS (30 hari)

0,59% peluang dieksploitasi; lebih tinggi dari 46,7% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/capricorn86/happy-dom/security/advisories/GHSA-w4gp-fjgq-3q4g exploit · advisory vendor
• https://github.com/capricorn86/happy-dom/blob/f8d8cad41e9722fab9eefb9dfb3cca696462e908/packages/happy-dom/src/... patch
• https://github.com/capricorn86/happy-dom/commit/68324c21d7b98f53f7bb5a7b3e185bda7106e751 patch
• https://github.com/capricorn86/happy-dom/pull/2117 issue tracking · patch
• https://github.com/capricorn86/happy-dom/releases/tag/v20.8.9 product · release notes
• https://access.redhat.com/security/cve/CVE-2026-34226
• https://bugzilla.redhat.com/show_bug.cgi?id=2452519
• https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-34226.json