CVE-2026-120684

MediumCVSS 6.5/10Last modified Nov 3, 2026

Description

A memory-initialization flaw in the legacy GridFS file handling of the MongoDB C Driver can cause uninitialized process memory to be treated as valid file content and stored on the server. A database user holding ordinary write access to a shared storage area can arrange conditions under which an application later appends to such a file and writes that memory into records the same user is permitted to read, which may result in unintended disclosure of sensitive information from the application's process, including credentials.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Weakness enumeration

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

VendorProductVersions
MongoDBC Driver>= 1.25.0, <= 1.30.14; >= 2.0.0, <= 2.5.7

References

Timeline

Published
Nov 3, 2026
Last modified
Nov 3, 2026
NVD status
Awaiting Analysis

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CVE-2026-120684: Medium severity, CVSS 6.5 | Vulnix