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CVE-2026-34532

CRITICAL

9.1

Descripcion

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.

Detalles CVE

Puntuacion CVSS v3.19.1

SeveridadCRITICAL

Vector CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Vector de ataqueNETWORK

ComplejidadLOW

Privilegios requeridosNONE

Interaccion usuarioNONE

Publicado3/31/2026

Ultima modificacion4/2/2026

Fuentenvd

Avistamientos honeypot0

Productos afectados

parseplatform:parse-server

Debilidades (CWE)

CWE-863

Referencias

https://github.com/parse-community/parse-server/commit/4fc48cf28f22eea200d74d883505f485234a48d7(security-advisories@github.com)

https://github.com/parse-community/parse-server/commit/dc59e272665644083c5b7f6862d88ce1ef0b2674(security-advisories@github.com)

https://github.com/parse-community/parse-server/pull/10342(security-advisories@github.com)

https://github.com/parse-community/parse-server/pull/10343(security-advisories@github.com)

https://github.com/parse-community/parse-server/security/advisories/GHSA-vpj2-qq7w-5qq6(security-advisories@github.com)

Correlaciones IOC

Sin correlaciones registradas

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