go.mongodb.org/mongo-driver: MongoDB Go Driver: Write redirection via unvalidated database name in Client.BulkWrite

A flaw was found in the MongoDB Go Driver. The Client.BulkWrite operation does not properly validate database names, allowing a specially crafted name with reserved characters to redirect write operations. This vulnerability could enable an attacker to modify or corrupt data in unintended databas...

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...

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...

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 it before the name is used to build the target namespace for the operation. An application that passes untrusted input as a database name...

PT-2026-82735

Name of the Vulnerable Software and Affected Versions MongoDB Go Driver affected versions not specified Description The client-level bulk write operation in the MongoDB Go Driver fails to escape reserved separator characters in caller-supplied database names before building the target namespace...

CVE-2026-81521: Improper Control of Resource Identifiers

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...