CVE-2026-10557

CRITICAL 9.8

Yarbo Android/iOS Mobile Application and Cloud Infrastructure Use of Hard-coded Credentials

CVSS Score

9.8

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-798
Vendor	yarbo
Product	yarbo android/ios mobile application
Published	Jun 12, 2026
Last Updated	Jun 12, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Affected Versions

Yarbo / Yarbo Android/IOS mobile application

0 < 3.17.4

Yarbo / Yarbo Cloud MQTT infrastructure

All

References

NVD ↗ CVE.org ↗ EPSS Data ↗

cisa.gov: https://www.cisa.gov/news-events/ics-advisories/icsa-26-162-01 github.com: https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-162-01.json

Credits

Markus Lassfolk of Truesec reported this vulnerability to CISA.