EUVD-2026-16864Published

Happy DOM ECMAScriptModuleCompiler: unsanitized export names are interpolated as executable code

cve-program · CVE-2026-33943

Published

happy-dom

Vendor product

Original vendor version evidence · not evaluated as a NuGet range

{
                    "vendor": "capricorn86",
                    "product": "happy-dom",
                    "versions": [
                        {
                            "version": ">= 15.10.0, < 20.8.8",
                            "status": "affected"
                        }
                    ]
                }

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

euvd · EUVD-2026-16864

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, 9:15:19 PM

dateUpdated: Jul 15, 2026, 1:05:08 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-2026-33943

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-94 · CWE-917

Original publisher date fields

published: 2026-03-27T22:16:21.393

lastModified: 2026-10-26T00:10:00.150

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-6q6h-j7hj-3r64

Published

happy-dom

npm

SEMVER · introduced 15.10.0 → fixed 20.8.8

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