CVE-2026-1850 HIGH

CVE-2026-1850: An authorized user may disable the MongoDB server by issuing a certain type of complex query due to boolean expression simplification

Vendor Mongodb Inc
Product MongoDB Server
Weakness CWE-770 · Uncontrolled resource consumption
Published February 10, 2026
Last update February 10, 2026
View on NVD All CVEs

CVSS base score

7.1/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality —
Integrity —

CVSS 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

What the vulnerability does

01Description

Complex queries can cause excessive memory usage in MongoDB Query Planner resulting in an Out-Of-Memory Crash.

Key dates

02Disclosure timeline

February 10, 2026 CVE published
February 10, 2026 Record updated