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CVE-2026-54335

CVE-2026-54335 · Feathersjs: Prototype pollution in @feathersjs/commons _.merge via JSON-parsed __proto__

Esta página presenta datos de fuentes públicas de vulnerabilidades. Consulta el aviso original antes de actualizar.

Feathersjs is a framework for creating web APIs and real-time applications with TypeScript or JavaScript. In 5.0.44 and earlier, the _.merge(target, source) utility exported by @feathersjs/commons recursively merges source into target by iterating Object.keys(source). When source was produced by JSON.parse and contains a __proto__, constructor, or prototype key, that key is returned as an own-enumerable property; the recursive merge then resolves target['__proto__'] to Object.prototype and writes attacker-supplied properties onto it, polluting the prototype for all plain objects in the process for the lifetime of the Node process. This issue is fixed in version 5.0.45.

CVSS 3.7 · Baja · EPSS 0,4% · Corrección disponible

Publicación
Actualización

Pila tecnológica: node

Productos y versiones afectados

  • feathers

    Versiones
    • < 5.0.45: Afectada

    Sin corrección publicada

  • @feathersjs/commons npm

    Intervalos de versiones afectados
    • SEMVER: < 5.0.45

    Actualiza a 5.0.45

Fuentes originales

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