{"id":"CVE-2026-77056","published":"2026-10-26T15:16:43.260","lastModified":"2026-10-26T17:17:29.727","description":"boneIO black_debian_images ships with a Mosquitto MQTT broker that uses the same default credentials on all devices. These credentials are publicly documented on github, and there is no indication in the instructions to change them. A remote attacker can use them to gain full read and write access to the broker, allowing control of connected relays, blinds, and gates, and injection of fake entities into a linked Home Assistant installation.\n\nThis issue was fixed in version 1.6.0 of the image: MQTT passwords are generated per device at first boot. Devices upgraded from earlier versions keep their existing broker credentials; from boneio 1.6.0 the web panel reports credentials that are still the published defaults, and the owner has to change them.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":["CWE-1392"],"vendors":[],"products":[],"references":[{"url":"https://boneio.eu/en/docs/black","tags":[]},{"url":"https://cert.pl/en/posts/2026/10/CVE-2026-77052","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}