Vulnerability Details CVE-2026-18706
An issue in MongoDB Server's $graphLookup aggregation stage could allow an authenticated user able to issue aggregation and memory-management commands to cause an internal reference to be used after the underlying memory has been freed. This could result in a server crash or, potentially, execution of unintended code.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 27.6%
CVSS Severity
CVSS v3 Score 6.6
Products affected by CVE-2026-18706
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cpe:2.3:a:mongodb:mongodb:8.3.0
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cpe:2.3:a:mongodb:mongodb:8.3.1
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cpe:2.3:a:mongodb:mongodb:8.3.2
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cpe:2.3:a:mongodb:mongodb:8.3.3
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cpe:2.3:a:mongodb:mongodb:8.3.4
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cpe:2.3:a:mongodb:mongodb:8.3.7
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cpe:2.3:a:mongodb:mongodb:9.0.0