CVE-2026-1847
Medium
Description
Inserting certain large documents into a replica set could lead to replica set secondaries not being able to fetch the oplog from the primary. This could stall replication inside the replica set leading to server crash.
SeverityMedium
CVSS6.5
Exploit probability—
Product
Mongodb
PublishedFeb 10, 2026
First seenFeb 10, 2026
Weakness typeCWE-770Allocation of resources without limits
How to fix
Update
- mongodb mongodb7.0.29, 8.0.18, 8.2.4 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mongodb mongodb | 7.0.0 ≤ v < 7.0.29, 8.0.0 ≤ v < 8.0.18, 8.2.0 ≤ v < 8.2.4 | 7.0.29, 8.0.18, 8.2.4 |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.