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.

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact High

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.0004.

Exploitation none

Automatable no

Technical Impact total

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
MongoDB MongoDB unaffected
Version Status Constraints
8.3.0 affected ≤ 8.3.3
8.2.0 affected ≤ 8.2.10
8.0.0 affected ≤ 8.0.25
7.0.0 affected ≤ 7.0.36
6.0 affected ≤ 6.0.28
5.0 affected ≤ 5.0.33
4.4.0 affected ≤ 4.4.30

No data.

No data.

OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.

Vendors Products
Mongodb Subscribe
Mongodb Subscribe

Project Subscriptions

Vendors Products
Mongodb Subscribe
Mongodb Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://jira.mongodb.org/browse/SERVER-128125 cve-icon cve-icon
History

Fri, 12 Jun 2026 14:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Fri, 12 Jun 2026 03:45:00 +0000

Type Values Removed Values Added
First Time appeared Mongodb
Mongodb mongodb
Vendors & Products Mongodb
Mongodb mongodb

Fri, 12 Jun 2026 02:15:00 +0000

Type Values Removed Values Added
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.
Title Post-authentication use-after-free in server-side JavaScript BSON-to-array conversion
Weaknesses CWE-787
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: mongodb

Published:

Updated: 2026-06-12T13:28:43.500Z

Reserved: 2026-06-10T18:54:51.125Z

Link: CVE-2026-11933

cve-icon Vulnrichment

Updated: 2026-06-12T13:28:39.655Z

cve-icon NVD

Status : Received

Published: 2026-06-12T02:16:38.527

Modified: 2026-06-12T02:16:38.527

Link: CVE-2026-11933

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-12T03:30:12Z

Weaknesses