What is CVE-2026-10557?

CVE-2026-10557 is a critical-severity vulnerability in Yarbo Android/ios Mobile Application, classified under Use of Hard-coded Credentials. CVSS score: 9.8/10. Published 2026-06-12.

How severe is CVE-2026-10557?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Yarbo Android/ios Mobile Application

CVE-2026-10557

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.

EPSS: 0.004 (28.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Yarbo Android/ios Mobile Application — versions 0
Yarbo Cloud Mqtt Infrastructure — versions All

Weakness classification (CWE)

CWE-798 — Use of Hard-coded Credentials

References

Frequently asked questions

What is CVE-2026-10557?: CVE-2026-10557 is a critical-severity vulnerability in Yarbo Android/ios Mobile Application, classified under Use of Hard-coded Credentials. CVSS score: 9.8/10. Published 2026-06-12.
How severe is CVE-2026-10557?: Critical severity. CVSS v3 base score is 9.8 out of 10.