critical9.8
CVE-2026-7415
The MQTT broker embedded in Yarbo firmware v2.3.9 is configured to allow anonymous connections with no topic-level read or write ACLs.
Impact
The MQTT broker embedded in Yarbo firmware v2.3.9 is configured to allow anonymous connections with no topic-level read or write ACLs. Any host on the same network can subscribe to sensitive telemetry topics or publish control messages directly to the robot without authentication or authorization of any kind.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Yarbo | Lawn Mower Firmware | Version 2.3.9 |
| Yarbo | Lawn Mower Pro Firmware | Version 2.3.9 |