Dashboard / CVE-2026-34226

CVE-2026-34226

INFO Priority: 0.00 BB Relevance: 0/100
Published: 2026-03-27 Modified: 2026-10-26 First seen: 2026-10-29 Status: pending_score

Description

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.

Weakness Classification (2)

Affected Software (1)

VendorProductVersion
capricorn86 happy_dom < 20.8.9

References & Advisories (8)

Bug Bounty Relevance

0 / 100

CVSS Score

Unscored

EPSS — Exploitation Probability

0.47%
Raw Score 0.004660
Percentile 40.3%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00466
2026-10-28
0.00466

Intelligence Sources

nvd ref →

External Links