GHSA-hp36-v28f-w3r4Published

flat-to-nested: Prototype pollution in flat-to-nested convert() via proto parent/id key

cve-program · CVE-2026-55091

Published

flat-to-nested-js

Vendor product

Original vendor version evidence · not evaluated as a NuGet range

{
                    "vendor": "joaonuno",
                    "product": "flat-to-nested-js",
                    "versions": [
                        {
                            "version": "< 1.1.2",
                            "status": "affected"
                        }
                    ]
                }

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

euvd · EUVD-2026-77691

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: Sep 14, 2026, 5:26:38 PM

dateUpdated: Sep 14, 2026, 8:05:59 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-2026-55091

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: Deferred

Weakness classifications: CWE-915 · CWE-1321

Original publisher date fields

published: 2026-09-14T18:17:54.790

lastModified: 2026-09-30T17:51:56.193

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

osv · GHSA-hp36-v28f-w3r4

Published

flat-to-nested

npm

SEMVER · introduced 0 → fixed 1.1.2

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