A flaw in the connection management layer of the MongoDB Node.js driver can leave a pooled network connection in the pool for reuse while data from an earlier operation is still outstanding on it. In applications that enable an optional client-side operation timeout, an unauthenticated party that can send ordinary requests to the application may cause database replies to be paired with the wrong requests. This may result in unintended disclosure of other users' records, incorrect operation results being returned, and failures of legitimate requests.
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Fixes

Solution

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Workaround

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References
History

Tue, 03 Nov 2026 13:45:00 +0000

Type Values Removed Values Added
Description A flaw in the connection management layer of the MongoDB Node.js driver can leave a pooled network connection in the pool for reuse while data from an earlier operation is still outstanding on it. In applications that enable an optional client-side operation timeout, an unauthenticated party that can send ordinary requests to the application may cause database replies to be paired with the wrong requests. This may result in unintended disclosure of other users' records, incorrect operation results being returned, and failures of legitimate requests.
Title MongoDB Node.js driver: Connection pool desynchronization after operation timeout can expose other user's data
Weaknesses CWE-226
References
Metrics cvssV3_1

{'score': 7, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:L'}

cvssV4_0

{'score': 8.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mongodb

Published:

Updated: 2026-11-03T13:33:39.466Z

Reserved: 2026-10-29T15:43:24.830Z

Link: CVE-2026-119179

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-11-03T14:17:33.617

Modified: 2026-11-03T16:15:28.703

Link: CVE-2026-119179

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-03T14:30:08Z

Weaknesses