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**Name of the Vulnerable Software and Affected Versions** Nabu Casa Home Assistant Operating System version 2022.03 Home Assistant Supervised version 2022.03 **Description** An information leak in the affected systems allows a DNS operator to gain knowledge about internal network resources via the hardcoded DNS resolver configuration. **Recommendations** For Nabu Casa Home Assistant Operating System version 2022.03, consider updating the DNS resolver configuration to prevent information leaks. For Home Assistant Supervised version 2022.03, update the DNS resolver configuration to mitigate the risk of internal network resource exposure.