CVE-2026-81526
Cross-database write redirection via unvalidated dotted database name in bulk write namespaces
CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
0th
The MongoDB Rust Driver does not neutralize special characters in a caller-supplied target identifier before embedding it in the request it sends to the server. An actor able to influence that identifier in an application using the driver may cause write operations to be applied to an unintended target within the same deployment using the application's own credentials. This may result in unauthorized modification of data belonging to another logical boundary enforced by the application.
| CWE | CWE-74 |
| Vendor | mongodb |
| Product | rust driver |
| Ecosystems | |
| Industries | Technology |
| Published | Aug 27, 2026 |
| Last Updated | Aug 27, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None
Affected Versions
MongoDB / Rust Driver
3.0.0 < 3.8.2