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CVE-2026-30939

Estado: AnalizadaAlta (8.8)—

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 8.6.13 and 9.5.1-alpha.2, an unauthenticated attacker can crash the Parse Server process by calling a Cloud Function endpoint with a prototype property name as the function name. The server recurses infinitely, causing a call stack size error that terminates the process. Other prototype property names bypass Cloud Function dispatch validation and return HTTP 200 responses, even though no such Cloud Functions are defined. The same applies to dot-notation traversal. All Parse Server deployments that expose the Cloud Function endpoint are affected. This vulnerability is fixed in 8.6.13 and 9.5.1-alpha.2.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

AV:N/PR:N/UI:N indica explotación remota sin autenticación (T1190). VI:L y VA:H permiten causar DoS (recursión infinita, crash de proceso) y acceso a propiedades prototipales; bypass de validación sugiere lectura de datos internos.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Privileged Account ManagementNetwork SegmentationLimit Access to Resource Over NetworkFilter Network TrafficVulnerability ScanningUser Account Management

Tecnologías afectadas (1)

Parseplatform — Parse-server

CWE

Referencias

JSON original (NVD)

Mostrar
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          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
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  "published": "2026-03-10T18:18:53.780",
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      "url": "https://github.com/parse-community/parse-server/releases/tag/9.5.1-alpha.2",
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      "source": "security-advisories@github.com"
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      "lang": "en",
      "value": "Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 8.6.13 and 9.5.1-alpha.2, an unauthenticated attacker can crash the Parse Server process by calling a Cloud Function endpoint with a prototype property name as the function name. The server recurses infinitely, causing a call stack size error that terminates the process. Other prototype property names bypass Cloud Function dispatch validation and return HTTP 200 responses, even though no such Cloud Functions are defined. The same applies to dot-notation traversal. All Parse Server deployments that expose the Cloud Function endpoint are affected. This vulnerability is fixed in 8.6.13 and 9.5.1-alpha.2."
    },
    {
      "lang": "es",
      "value": "Parse Server es un backend de código abierto que puede ser desplegado en cualquier infraestructura que pueda ejecutar Node.js. Antes de 8.6.13 y 9.5.1-alpha.2, un atacante no autenticado puede bloquear el proceso de Parse Server al llamar a un endpoint de función en la nube con un nombre de propiedad de prototipo como nombre de la función. El servidor entra en recursión infinita, causando un error de tamaño de pila de llamadas que termina el proceso. Otros nombres de propiedades de prototipo eluden la validación de despacho de funciones en la nube y devuelven respuestas HTTP 200, aunque no haya funciones en la nube definidas. Lo mismo se aplica al recorrido por notación de puntos. Todas las implementaciones de Parse Server que exponen el endpoint de función en la nube se ven afectadas. Esta vulnerabilidad está corregida en 8.6.13 y 9.5.1-alpha.2."
    }
  ],
  "lastModified": "2026-06-17T10:33:11.323",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
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