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CVE-2026-14631

CVE-2026-14631 · webpack-dev-server vulnerable to denial of service via a malformed Host or Origin header

Cette page présente des faits issus de sources publiques. Consultez l’avis original avant toute mise à jour.

webpack-dev-server versions 5.2.5 and earlier terminate the whole Node.js process when an unauthenticated peer sends either a normal HTTP request with a malformed Host header or a WebSocket upgrade to the default /ws endpoint with a malformed Origin header. The malformed value causes an uncaught exception in the host-validation path and crashes the dev server. Impact is limited to availability of the development server, no data disclosure, no code execution. Patches: upgrade to webpack-dev-server 5.2.6. Workarounds: keep the dev server bound to localhost (the default) and do not expose it to untrusted networks.

CVSS 5.3 · Moyenne · EPSS 0,5% · Correctif disponible

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Mise à jour

Pile logicielle: node

Produits et versions concernés

  • webpack-dev-server

    Versions du logiciel
    • ≥ 0, < 5.2.6: Concernée (semver)
    • 5.2.6: Non concernée (semver)

    Mettez à jour vers 5.2.6

  • webpack-dev-server npm

    Plages de versions concernées
    • SEMVER: < 5.2.6

    Mettez à jour vers 5.2.6

Sources originales

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