CVE-2026-112051

Description

Xinference through 4.0.1 contains a path traversal vulnerability on Windows that allows unauthenticated attackers to write and delete arbitrary .json files via backslash sequences in model_name. Attackers can register a persisted custom model through POST /v1/model_registrations/{model_type} with names like ..\..\evil to overwrite configuration or data files writable by the Xinference process.

References

• https://github.com/xorbitsai/inference/blob/v4.0.1/xinference/model/cache_manager.py#L117-L134
• https://github.com/xorbitsai/inference/blob/v4.0.1/xinference/model/utils.py#L1175-L1182
• https://github.com/xorbitsai/inference/commit/beddc97ac211f8414597fe8479493be0603f7c84
• https://github.com/xorbitsai/inference/issues/5702
• https://www.vulncheck.com/advisories/xinference-through-4.0.1-path-traversal-via-model-name-in-custom-model-registration