Disclosure summary
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.
Source-reported weakness categories
CWE-99
Source-specific records & product guidance
Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.
NIST National Vulnerability Database · NVD-CVE-2026-81521
Open original source · Updated Oct 06, 2026
Only CPE matches marked vulnerable=true are indexed. AND/OR platform conditions must be checked in the original NVD record.
| Vendor | Product / association | Version / bounds |
|---|---|---|
| mongodb | go_driver | * {"versionStartIncluding":"2.1.0","versionEndExcluding":"2.8.2"} |
Original records & references
- NIST NVD record
- CVE Program record
- jira.mongodb.org — Vendor Advisory
- pkg.go.dev — Product
PUBLISHED 2026-08-27T16:18:50-04:00
MODIFIED 2026-10-06T15:18:15-04:00
INGESTED 2026-10-10T20:25:12-04:00