What’s Vulnerable › Vulnerabilities

CVE-2026-10557: Yarbo Android/iOS Mobile Application and Cloud Infrastructure Use of Hard-coded Credentials

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-06-12 · updated 2026-06-17
• Weakness: CWE-798

Description

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.

Affected products

• Yarbo Android/IOS mobile application: before 3.17.4 — fixed in 3.17.4
• Yarbo Cloud MQTT infrastructure: all versions

How to fix

Upgrade to a fixed version: Yarbo Android/IOS mobile application 3.17.4. Check the vendor advisory for mitigations.

References

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

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