Detections
Analytics

MongoDB Unauthenicated Uninitialized Heap Memory Leak (MongoBleed) (CVE-2025-14847) (Direct Check)

high Nessus Plugin ID 282478

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Synopsis

The remote web server is affected by a memory leak vulnerability.

Description

The instance of MongoDB running on the remote host is affected by MongoBleed, an unauthenticated unintialized heap memory leak vulnerability:

 - Mismatched length fields in Zlib compressed protocol headers may allow a read of uninitialized heap memory by an unauthenticated client. (CVE-2025-14847)

A remote, unauthenticated attacker can exploit this issue, via a specially crafted request, to leak potentially sensitive server memory.

Solution

Upgrade to MongoDB version 4.4.30, 5.0.32, 6.0.27, 7.0.28, 8.0.17, or 8.2.3 or later.

See Also

https://github.com/joe-desimone/mongobleed

http://www.nessus.org/u?d81f67eb

Plugin Details

Severity: High

ID: 282478

File Name: mongobleed_direct_check.nbin

Version: 1.1

Type: remote

Family: CGI abuses

Published: 1/8/2026

Updated: 1/8/2026

Configuration: Enable thorough checks (optional)

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: High

Score: 8.9

CVSS v2

Risk Factor: High

Base Score: 7.8

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

CVSS Score Source: CVE-2025-14847

CVSS v3

Risk Factor: Medium

Base Score: 6.5

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

CVSS v4

Risk Factor: High

Base Score: 8.7

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

Vulnerability Information

CPE: cpe:/a:mongodb:mongodb

Required KB Items: installed_sw/MongoDB

Patch Publication Date: 12/19/2025

Vulnerability Publication Date: 12/19/2025

Reference Information

CVE: CVE-2025-14847

IAVA: 2025-A-0940