CVE-2025-43849

Retrieval-based-Voice-Conversion-WebUI is a voice changing framework based on VITS. Versions 2.2.231006 and prior are vulnerable to unsafe deserialization. The ckpt_a and cpkt_b variables take user input (e.g. a path to a model) and pass it to the merge function in process_ckpt.py, which uses them to load the models on those paths with torch.load, which can lead to unsafe deserialization and remote code execution. As of time of publication, no known patches exist.

The following products are affected by CVE-2025-43849 vulnerability.

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Here, you will find a curated list of external links that provide in-depth information to CVE-2025-43849.

URL	Resource
https://github.com/RVC-Project/Retrieval-based-Voice-Conversion-WebUI/blob/7ef19867780cf703841ebafb565a4e47d1ea86ff/infer/lib/train/process_ckpt.py#L196
https://github.com/RVC-Project/Retrieval-based-Voice-Conversion-WebUI/blob/9f2f0559e6932c10c48642d404e7d2e771d9db43/infer-web.py#L1357
https://github.com/RVC-Project/Retrieval-based-Voice-Conversion-WebUI/blob/9f2f0559e6932c10c48642d404e7d2e771d9db43/infer-web.py#L1358
https://github.com/RVC-Project/Retrieval-based-Voice-Conversion-WebUI/blob/9f2f0559e6932c10c48642d404e7d2e771d9db43/infer-web.py#L1398
https://securitylab.github.com/advisories/GHSL-2025-012_GHSL-2025-022_Retrieval-based-Voice-Conversion-WebUI/