Description
An out-of-bounds write in the MongoDB Atlas SQL ODBC Driver may be triggered when a value of a particular database type is retrieved into a fixed-width client-side target. The driver produces a textual form of the value that is longer than the fixed target the ODBC interface defines, and copies it without limiting the copy to the target's real size. A database user with basic write privileges can influence part of the data written outside the target, which may corrupt memory in the application using the driver and cause that application to terminate unexpectedly.
Published: 2026-11-03
Score: 6 Medium
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
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Remediation

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History

Tue, 03 Nov 2026 22:15:00 +0000

Type Values Removed Values Added
First Time appeared Mongodb
Mongodb atlas Sql Odbc Driver
Vendors & Products Mongodb
Mongodb atlas Sql Odbc Driver

Tue, 03 Nov 2026 20:30:00 +0000

Type Values Removed Values Added
Description An out-of-bounds write in the MongoDB Atlas SQL ODBC Driver may be triggered when a value of a particular database type is retrieved into a fixed-width client-side target. The driver produces a textual form of the value that is longer than the fixed target the ODBC interface defines, and copies it without limiting the copy to the target's real size. A database user with basic write privileges can influence part of the data written outside the target, which may corrupt memory in the application using the driver and cause that application to terminate unexpectedly.
Title MongoDB Atlas SQL ODBC Driver writes 48-byte Extended JSON into fixed 16-byte SQL_C_GUID target, causing a 32-byte out-of-bounds write
Weaknesses CWE-787
References
Metrics cvssV3_1

{'score': 7.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H'}

cvssV4_0

{'score': 6, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N'}


Subscriptions

Mongodb Atlas Sql Odbc Driver
cve-icon MITRE

Status: PUBLISHED

Assigner: mongodb

Published:

Updated: 2026-11-03T20:16:12.683Z

Reserved: 2026-11-03T02:46:13.092Z

Link: CVE-2026-120952

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-11-03T21:17:04.817

Modified: 2026-11-03T21:17:04.817

Link: CVE-2026-120952

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-03T22:00:05Z

Weaknesses