VULNERABILITY INTELLIGENCE

CVE-2026-119339

CVSS score5.5 MEDIUM

EPSS probability0.38%

CISA KEVNot currently listed

Published2026-10-30

Last modified2026-10-30

Description

A use-after-free vulnerability exists in MongoDB Server's server-side JavaScript engine when converting BSON documents to JavaScript arrays. An authenticated user with read privileges who is able to run server-side JavaScript (for example, via $where or $function) can cause the server to access memory that has already been freed. This may result in disclosure of information from the mongod process memory or a denial of service through a server crash.