Vulnerability · Published Aug 28, 2026 · Assigned by mongodb
CVE-2026-76797MongoSQL Transition Readiness Tool Improper Neutralization of Formula Elements in Generated Reports
Medium 6.3
In plain English
A medium-severity security flaw in BI Connector Transition Readiness Report from MongoDB. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 29% of all known vulnerabilities).
Official description
The MongoSQL Transition Readiness Tool writes database and collection names into its generated CSV reports without neutralizing leading characters that spreadsheet applications treat as formulas. A user with write privileges on the cluster can choose a namespace name that is later evaluated as a formula when an operator opens the generated report in a spreadsheet application, which may result in unintended disclosure of report contents or execution of external content on the operator's workstation. Generating a report for the affected namespace and opening it in a spreadsheet application is required.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| MongoDB | BI Connector Transition Readiness Report | 1.0.0 – before 1.1.3 |
Weakness: CWE-1236 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N