Detections
Analytics

SCA: security update for happy-dom (GHSA-w4gp-fjgq-3q4g)

high Tenable Cloud Security Plugin ID 439433

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - 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. (CVE-2026-34226)

Solution

Update the happy-dom library and its related packages to version 20.8.9 or later.

See Also

https://github.com/advisories/GHSA-w4gp-fjgq-3q4g

Plugin Details

Severity: High

ID: 439433

Version: Revision 1.3

Type: Local

Family: SCA Checks

Published: 3/29/2026

Updated: 7/2/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.72

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.1

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:N/A:N

CVSS Score Source: CVE-2026-34226

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 3/29/2026

Vulnerability Publication Date: 3/27/2026

Reference Information

CVE: CVE-2026-34226

cwe: CWE-201