PT-2026-48876 · Yarbo · Yarbo Android/Ios Mobile Application+1

Markus Lassfolk · Published 2026-06-12 · Updated 2026-06-12 · CVE-2026-10557

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 Yarbo Android and iOS applications contain hard-coded MQTT broker credentials that are identical for all users and all devices. These credentials are embedded in the application binary and are readily extractable via APK decompilation. The credentials provide access to cloud MQTT brokers carrying real-time telemetry for the entire global Yarbo robot fleet. They allow both wildcard subscription to all robot telemetry topics and publishing to any robot's command topic using only the robot's serial number.

Fix

Using Hardcoded Credentials

Weakness Enumeration

CWE-798

Related Identifiers

CVE-2026-10557

Affected Products

Yarbo Android/Ios Mobile Application

Yarbo Cloud Mqtt Infrastructure

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2026-10557 · Security Note
• https://cisa.gov/news-events/ics-advisories/icsa-26-162-01 · Note
• https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-162-01.json · Note