CVE-2026-119051
CVE-2026-119051 · flat through 6.0.1 Denial of Service via unflatten() Numeric Array Index Keys
Cette page présente des faits issus de sources publiques. Consultez l’avis original avant toute mise à jour.
flat through 6.0.1 contains an uncontrolled resource allocation vulnerability in unflatten() that allows attackers to create huge sparse arrays via unbounded numeric keys. Attackers can supply flattened keys such as a.4294967294, causing iteration with forEach, spread or JSON.stringify to block the Node.js event loop.
CVSS 8.2 · Élevée · EPSS 0,3%
- Publication
- Mise à jour
Produits et versions concernés
flat
- Versions du logiciel
- ≥ 0, ≤ 6.0.1: Concernée (custom)
Aucun correctif publié
Sources originales
- https://github.com/hughsk/flat/issues/195
- https://github.com/hughsk/flat
- https://github.com/hughsk/flat/blob/1d68e1d06c0210cff31e5c61ac177f3e2d3fa564/index.js#L65-L75
- https://github.com/hughsk/flat/blob/1d68e1d06c0210cff31e5c61ac177f3e2d3fa564/index.js#L137-L142
- https://www.vulncheck.com/advisories/flat-through-6.0.1-denial-of-service-via-unflatten-numeric-array-index-keys
- https://nvd.nist.gov/vuln/detail/CVE-2026-119051