CVE-2026-34386
High
Description
Fleet is open source device management software. Prior to 4.81.0, a SQL injection vulnerability in Fleet's MDM bootstrap package configuration allows an authenticated user with Team Admin or Global Admin privileges to modify arbitrary team configurations, exfiltrate sensitive data from the Fleet database, and inject arbitrary content into team configs via direct API calls. Version 4.81.0 patches the issue.
SeverityHigh
CVSS8.8
Exploit probability—
ProductFleet
PublishedMar 27, 2026
First seenMar 27, 2026
Weakness typeCWE-89SQL injection
How to fix
Update
- fleetdm fleet4.81.0 or later
- github.com/fleetdm/fleet/v44.81.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| fleetdm fleet | v < 4.81.0 | 4.81.0 |
| github.com/fleetdm/fleet/v4Go | v < 4.81.0 | 4.81.0 |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.