medium6.5
CVE-2026-81521
The MongoDB Go Driver's client-level bulk write operation may accept a caller-supplied database name containing a reserved separator character without escaping…
Impact
The MongoDB Go Driver's client-level bulk write operation may accept a caller-supplied database name containing a reserved separator character without escaping it before the name is used to build the target namespace for the operation. An application that passes untrusted input as a database name could therefore have the write directed at a database and collection other than the ones it intended. Only the Client.BulkWrite API is affected.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Mongodb | Go Driver | from 2.1.0 before 2.8.2 |