[CVE-2026-9740] A vulnerability in MongoDB Server's BSON validation logic allows an unauthenticated user to crash th…

Descripción técnica

A vulnerability in MongoDB Server's BSON validation logic allows an unauthenticated user to crash the mongod process by sending a specially crafted message. The BSON validator's handling of certain nested binary data structures permits uncontrolled mutual recursion between validation functions, where each re-entry resets internal depth tracking.

Puntuación CVSS

Score: 7.5/10 — Severidad: HIGH — Estado NIST: Analyzed

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

Productos afectados

Mongodb — Mongodb

Debilidades (CWE)

CWE-674

Fuente oficial

Publicado en NIST NVD.