Detections
Analytics

MongoDB 7.0.x < 7.0.31 / 8.0.x < 8.0.20 / 8.2.x < 8.2.6 / 8.3.0-rc0 Double Free (SERVER-118849)

medium Nessus Plugin ID 303196

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Synopsis

The remote host is missing a security update.

Description

The version of MongoDB installed on the remote host is 7.0 prior to 7.0.31, 8.0 prior to 8.0.20, 8.2 prior to 8.2.6, and 8.3.0-rc0. It is, therefore, affected by a vulnerability as referenced in the SERVER-118849 advisory.

 - A specially crafted aggregation query with $lookup by an authenticated user with write privileges can cause a double-free or use-after-free memory issue in the slot-based execution (SBE) engine when an in-memory hash table is spilled to disk. (CVE-2026-4358)

 Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade to MongoDB version 7.0.31, 8.0.20, 8.2.6, 8.3.0-rc0 or later.

See Also

https://jira.mongodb.org/browse/SERVER-118849

Plugin Details

Severity: Medium

ID: 303196

File Name: mongodb_server_SERVER-118849.nasl

Version: 1.3

Type: Combined

Agent: windows, macosx, unix

Family: Databases

Published: 3/20/2026

Updated: 4/6/2026

Configuration: Enable thorough checks (optional)

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.4

CVSS v2

Risk Factor: High

Base Score: 7.1

Temporal Score: 5.6

Vector: CVSS2#AV:N/AC:H/Au:S/C:C/I:C/A:C

CVSS Score Source: CVE-2026-4358

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

CVSS v4

Risk Factor: Medium

Base Score: 6.1

Threat Score: 5.6

Threat Vector: CVSS:4.0/E:P

Vector: CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N

Vulnerability Information

CPE: cpe:/a:mongodb:mongodb

Required KB Items: installed_sw/MongoDB

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 3/17/2026

Vulnerability Publication Date: 3/17/2026

Reference Information

CVE: CVE-2026-4358

IAVA: 2026-A-0253