CVE-2026-81521

CVE-2026-81521 affects the MongoDB Go Driver's Client.BulkWrite API . When a caller-supplied database name contains a reserved separator character (dot) that is not escaped before being used to build the target namespace, a write operation can be redirected to an unintended database and collectio...

CVE-2026-81521 Cross-database write retargeting via unvalidated dotted database name in Client.BulkWrite in the MongoDB Go Driver

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...