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

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

https://cvefeed.io/rssfeed/latest.atom / Fri, 08/28/2026 - 01:28
CVE ID :CVE-2026-81521
Published : Aug. 27, 2026, 8:18 p.m. | 2 hours, 11 minutes ago
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.
Severity: 7.1 | HIGH
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