CVE-2026-1850

An authorized user may disable the MongoDB server by issuing a certain type of complex query due to boolean expression simplification

Published Feb 10, 2026 CVSS 4.0 · 7.1 High EPSS < 1% KEV · Not listed
Description
Complex queries can cause excessive memory usage in MongoDB Query Planner resulting in an Out-Of-Memory Crash.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
CPEs cpe:2.3:a:mongodb:mongodb:*:*:*:*:-:*:*:*
Type Values Removed Values Added
First Time appeared Mongodb
Mongodb mongodb
Vendors & Products Mongodb
Mongodb mongodb
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 Complex queries can cause excessive memory usage in MongoDB Query Planner resulting in an Out-Of-Memory Crash.
Title An authorized user may disable the MongoDB server by issuing a certain type of complex query due to boolean expression simplification
Weaknesses CWE-770
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 7.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
mongodb
Published
Updated
Feb 10, 2026, 7:18 PM
Reserved
Feb 3, 2026, 6:21 PM
Status
Analyzed
Published
Feb 10, 2026, 7:15 PM
Modified
Jun 17, 2026, 10:16 AM