CVE-2026-10557CWE-798

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

Critical · published June 12, 2026

CVSS v4.0
9.3
EPSS
0%
Percentile
27.8
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
9.3 · CRITICAL
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.00353 · 27.8th percentile
Weakness
CWE-798 · Use of Hard-coded Credentials
Published
2026-06-12T14:05Z
EPSS history
Timeline
  • 12 JUN 14:05Z
    Yarbo Android/iOS Mobile Application and Cloud Infrastructure Use of Hard-coded Credentials
    cvelistv5