PT-2026-38460 · Yarbo · Firmware

Andreas Makris + 1 · Published 2026-05-07 · Updated 2026-05-07 · CVE-2026-7415

Mitre

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

Fix

Missing Authentication

Weakness Enumeration

CWE-306

Related Identifiers

CVE-2026-7415

Affected Products

Firmware

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2026-7415 · Security Note
• https://github.com/Bin4ry/yarbo-nat-in-my-back-yard · Note
• https://takeonme.org/gcves/GCVE-1337-2026-00000000000000000000000000000000000000000000000000111111111100111111111110000000000000000000000000000000000000000000000000000001001 · Note