GHSA-95h2-gj7x-gx9wPublished

Unhead has a hasDangerousProtocol() bypass via leading-zero padded HTML entities in useHeadSafe()

cve-program · CVE-2026-39315

Published

unhead

Vendor product

Original vendor version evidence · not evaluated as a NuGet range

{
                    "vendor": "unjs",
                    "product": "unhead",
                    "versions": [
                        {
                            "version": "< 2.1.13",
                            "status": "affected"
                        }
                    ]
                }

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

euvd · EUVD-2026-20992

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: Apr 9, 2026, 5:54:07 PM

dateUpdated: Apr 13, 2026, 3:38:52 PM

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-2026-39315

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: Analyzed

Weakness classifications: CWE-184

Original publisher date fields

published: 2026-04-09T18:17:01.433

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

1 source CPE criteria · context only

cpe:2.3:a:unjs:unhead:*:*:*:*:*: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-95h2-gj7x-gx9w

Published

unhead

npm

SEMVER · introduced 0 → fixed 2.1.13

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