MongoDB
CVE-2026-1850
MEDIUM
Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Lifecycle Timeline
2DescriptionCVE.org
Complex queries can cause excessive memory usage in MongoDB Query Planner resulting in an Out-Of-Memory Crash.
AnalysisAI
MongoDB's Query Planner can be exhausted of available memory when processing specially crafted complex queries, leading to service denial through out-of-memory crashes. Authenticated users can trigger this condition without user interaction, affecting availability of MongoDB instances. No patch is currently available to address this vulnerability.
Technical ContextAI
Classified as CWE-770 (Allocation of Resources Without Limits or Throttling). Affects Mongodb. Complex queries can cause excessive memory usage in MongoDB Query Planner resulting in an Out-Of-Memory Crash.
RemediationAI
Monitor vendor advisories for a patch. Restrict network access to the affected service where possible.
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Same technique Denial Of Service
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External POC / Exploit Code
Leaving vuln.today