CVE-2026-81521
MEDIUM
NVD
CVSS Score
6.5
Severity
MEDIUM
Published
Aug 27, 2026
Vendor
unknown
Description
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.