GHSA-w4gp-fjgq-3q4gPublished

Happy DOM's fetch credentials include uses page-origin cookies instead of target-origin cookies

cve-program · CVE-2026-34226

Published

happy-dom

Vendor product

Original vendor version evidence · not evaluated as a NuGet range

{
                    "vendor": "capricorn86",
                    "product": "happy-dom",
                    "versions": [
                        {
                            "version": "< 20.8.9",
                            "status": "affected"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON

euvd · EUVD-2026-16893

Published

EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON.

Original publisher date fields

datePublished: Mar 27, 2026, 9:17:24 PM

dateUpdated: Jul 15, 2026, 1:04:37 AM

No normalized affected-package data is projected for this source revision. The original publisher record may contain additional product and version evidence; this does not establish that a package is unaffected.

Original source record · Cite this exact observation · Complete original publisher JSON

nvd · CVE-2026-34226

Published

NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON.

Source analysis status: Modified

Weakness classifications: CWE-201 · CWE-359

Original publisher date fields

published: 2026-03-27T22:16:23.113

lastModified: 2026-10-26T21:10:00.170

1 source CPE criteria · context only

cpe:2.3:a:capricorn86:happy_dom:*:*:*:*:*:node.js:*:*

The original JSON retains the logical configuration operators, exclusions and version bounds.

Original source record · Cite this exact observation · Complete original publisher JSON

osv · GHSA-w4gp-fjgq-3q4g

Published

happy-dom

npm

SEMVER · introduced 0 → fixed 20.8.9

Original source record · Cite this exact observation · Complete original publisher JSON