CVE-2026-7415 Open MQTT orchestration without read/write ACLs in Yarbo robot firmware

Critical 9.8 Published Updated

Attackers on the local network can read telemetry and control Yarbo robots without authentication due to missing MQTT access controls.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-7415?

CVE-2026-7415 is a critical missing authorization vulnerability in Yarbo Firmware, published on 7 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

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.

Weakness: CWE-306

Which versions are affected by CVE-2026-7415?

It affects 2 products.

Products include Yarbo Lawn Mower Firmware, Yarbo Lawn Mower Pro Firmware.

How do I fix CVE-2026-7415?

No fix has been published for CVE-2026-7415 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-7415 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-7415 exists.

Sources

Also known as GHSA-5jxr-5v22-49gf.

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