CVE-2026-81521: CWE-99: Improper Control of Resource Identifiers ('Resource Injection') in 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 could therefore have the write directed at a database and collection other than the ones it intended. Only the Client.BulkWrite API is affected.
CVE-2026-81521: CWE-99: Improper Control of Resource Identifiers ('Resource Injection') in MongoDB GO Driver
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.
CVSS v4.0
Score 7.1high
Affected software
Weaknesses
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mongodb
- Date Reserved
- 2026-08-26T22:13:12.343Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a909cffacd9273b49b2d37a
Added to database: 08/27/2026, 20:24:31 UTC
Last updated: 08/28/2026, 02:37:17 UTC
Views: 9
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