Unrated severityNVD Advisory· Published Feb 10, 2026· Updated Feb 10, 2026
An authorized user may disable the MongoDB server by issuing a certain type of complex query due to boolean expression simplification
CVE-2026-1850
Description
Complex queries can cause excessive memory usage in MongoDB Query Planner resulting in an Out-Of-Memory Crash.
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Affected products
3- MongoDB Inc/MongoDB Serverv5Range: 8.0
Patches
Vulnerability mechanics
References
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