CVE-2026-8063
Medium · 6.5CVSS
6.5
EPSS
0.4%
Published
May 7, 2026
CISA due date
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The record
An authenticated user can crash mongod when running $rankFusion or $scoreFusion with an empty pipeline on a view. When resolving a view, the server inspects the aggregation pipeline to determine whether it begins with an Atlas Search stage. For $rankFusion and $scoreFusion, this inspection reads the first element on each stage’s input pipeline array without first verifying that the array is non-empty. Supplying an empty pipeline causes a null pointer dereference and crashes the server. This issue affects MongoDB Server 8.2 versions prior to 8.2.7.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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