CVE-2026-8063
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 products
- Mongodb Server, Mongodb
- Mongodb
- < 8.2.7
- Fix
- Available
- CVSS 4.0
- 7.1 HIGH
- CVSS 3.1
- 6.5 MEDIUM
- EPSS
- 0.2% (14th percentile)
- Weakness
- CWE-476
- NVD status
- Analyzed
- Published
- 2026-05-07
No indexed exploits for CVE-2026-8063 yet
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No exploit for CVE-2026-8063 has been indexed yet. Our index is built from live traffic and upstream syncs, so this page can only say what it knows — not that no exploit exists.