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CVE Watch10 nov 2026

CVE-2026-120818

A use-after-free weakness in MongoDB Server's server-side JavaScript support for aggregation may allow a stale reference to previously freed

CVSS

7.1

Alto

EPSS

—

KEV

—

Exploit Today

—

0-100

Publicado: 10 nov 2026 · Última mod.: 10 nov 2026 · CWE-416

EPSS · 30d

Sin historial EPSS suficiente todavía.

Descripción técnica

A use-after-free weakness in MongoDB Server's server-side JavaScript support for aggregation may allow a stale reference to previously freed process memory to be read and returned. An authenticated user with minimal or no assigned roles can trigger this condition over the normal network protocol by submitting a single crafted aggregation request, with no additional privileges or non-default configuration. Successful triggering this issue may result in adjacent process memory contents being returned, including data that undermines memory-layout randomization, and may in some cases affect server availability.

Referencias oficiales

jira.mongodb.orghttps://jira.mongodb.org/browse/SERVER-135727

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