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CVE-2026-34532

CVE-2026-34532 · Parse Server: Cloud function validator bypass via prototype chain traversal

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

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.67 and 9.7.0-alpha.11, an attacker can bypass Cloud Function validator access controls by appending "prototype.constructor" to the function name in the URL. When a Cloud Function handler is declared using the function keyword and its validator is a plain object or arrow function, the trigger store traversal resolves the handler through its own prototype chain while the validator store fails to mirror this traversal, causing all access control enforcement to be skipped. This allows unauthenticated callers to invoke Cloud Functions that are meant to be protected by validators such as requireUser, requireMaster, or custom validation logic. This issue has been patched in versions 8.6.67 and 9.7.0-alpha.11.

CVSS 9.1 · Crítica · EPSS 0,3% · Corrección disponible

Publicación
Actualización

Pila tecnológica: node

Productos y versiones afectados

  • parse-server

    Versiones
    • < 8.6.67: Afectada
    • >= 9.0.0, < 9.7.0-alpha.11: Afectada

    Sin corrección publicada

  • parse-server npm

    Intervalos de versiones afectados
    • SEMVER: ≥ 9.0.0, < 9.7.0-alpha.11

    Actualiza a 9.7.0-alpha.11

  • parse-server npm

    Intervalos de versiones afectados
    • SEMVER: < 8.6.67

    Actualiza a 8.6.67

Fuentes originales

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