CVE-2026-119179

MongoDB Node.js driver: Connection pool desynchronization after operation timeout can expose other user's data

Published Nov 3, 2026 CVSS 4.0 · 8.3 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

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History
Type Values Removed Values Added
Metrics ssvc

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

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'}

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Weaknesses

Sources

Status
PUBLISHED
Assigner
mongodb
Published
Updated
Nov 3, 2026, 6:17 PM
Reserved
Oct 29, 2026, 3:43 PM
Status
Awaiting Analysis
Published
Nov 3, 2026, 2:17 PM
Modified
Nov 3, 2026, 7:17 PM
Severity
Moderate
Public date
Nov 3, 2026, 1:33 PM