Voice Builder Prior to commit c145d4604df67e6fc625992412eef0bf9a85e26b and f6660e6d8f0d1d931359d591dbdec580fef36d36 is affected by: CWE-78: Improper Neutralization of Special Elements used in an OS Command (‘OS Command Injection’). The impact is: Remote code execution with the same privileges as the servers. The component is: Two web servers in the projects expose three vulnerable endpoints that can be accessed remotely. The endpoints are defined at: – /tts: https://github.com/google/voice-builder/blob/3a449a3e8d5100ff323161c89b897f6d5ccdb6f9/merlin_model_server/api.js#L34 – /alignment: https://github.com/google/voice-builder/blob/3a449a3e8d5100ff323161c89b897f6d5ccdb6f9/festival_model_server/api.js#L28 – /tts: https://github.com/google/voice-builder/blob/3a449a3e8d5100ff323161c89b897f6d5ccdb6f9/festival_model_server/api.js#L65. The attack vector is: Attacker sends a GET request to the vulnerable endpoint with a specially formatted query parameter. The fixed version is: After commit f6660e6d8f0d1d931359d591dbdec580fef36d36.