p PatchFirst

CVE-2026-53666

CVE-2026-53666 · React Router: Arbitrary Constructor Injection via deserializeErrors() in React Router SSR Hydration

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

React Router is a router for React. In versions 6.4.0 through 7.17.0, if application code was written in a way that allows attacker-supplied input to overwrite certain aspects of errors caught by the SSR process, then it was possible for an attacker to trigger unexpected constructor execution on the client, which would in turn trigger an outbound network request. This is only possible with very specific (and unlikely) application-layer code. Note that this does not impact an application if it is using Declarative Mode. It only impacts Framework Mode and Data Mode applications that perform manual SSR/hydration. This issue has been fixed in version 7.18.0.

CVSS 6.1 · Moyenne · EPSS 0,4% · Correctif disponible

Publication
Mise à jour

Pile logicielle: node

Produits et versions concernés

  • react-router

    Versions du logiciel
    • >= 6.4.0, < 7.18.0: Concernée

    Aucun correctif publié

  • react-router npm

    Plages de versions concernées
    • SEMVER: ≥ 6.4.0, < 7.18.0

    Mettez à jour vers 7.18.0

Sources originales

Vérifiez votre serveur →