| Package | Affected versions | Patched versions |
|---|---|---|
| mosquitto | < 1.4.12 | 1.4.12 |
In Mosquitto before 1.4.12, pattern based ACLs can be bypassed by clients that set their username/client id to '#' or '+'. This allows locally or remotely connected clients to access MQTT topics that they do have the rights to. The same issue may be present in third party authentication/access control plugins for Mosquitto.
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