In the Eclipse Paho Java client library version 1.2.0, when connecting to an MQTT server using TLS and setting a host name verifier, the result of that verification is not checked. This could allow one MQTT server to impersonate another and provide the client library with incorrect information.
The product does not properly verify that the source of data or communication is valid.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Paho_java_client | Eclipse | 1.2.0 (including) | 1.2.0 (including) |
| Red Hat Fuse 7.8.0 | RedHat | org.eclipse.paho.client.mqttv3 | * |