---
id: "CVE-2026-113743"
kind: "vulnerability"
aliases: ["CVE-2026-113743"]
title: "Tenstorrent tt-metal: path traversal in checkpoint loader lets attackers read files"
severity: "high"
cvss: 7.5
epss: 0.00444
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["ml-inference", "package", "python", "tenstorrent", "tt-metal"]
not_affected_if: ["version-0.81.0-or-later"]
published_at: "2026-10-21T02:17:06+00:00"
first_seen_at: "2026-10-23T21:57:28+00:00"
updated_at: "2026-10-25T03:17:05+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-113743", "first_seen_at": "2026-10-23T21:57:28+00:00"}, {"source": "epss", "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-113743", "first_seen_at": "2026-10-24T13:15:55+00:00"}]
---

# Tenstorrent tt-metal: path traversal in checkpoint loader lets attackers read files

The function load_hf_state_dict_filtered in tt-metal's tt_transformers checkpoint loader accepts a weight_map argument that is not sanitised, so a crafted value can traverse outside the intended directory. An attacker can use this to reach files the loading process can read on the host.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the installed tt-metal version and compare it with `0.80.0`; versions up to and including `0.80.0` are affected.
- Look for use of `models/tt_transformers/tt/load_checkpoints.py` and the function `load_hf_state_dict_filtered` in your deployment.

## Fix

- Upgrade tt-metal to `0.81.0-dev20261016` or later, which the sources state fixes this issue (patch 4851ccf347f6903c3d819eed60705600386e52c3).

## Timeline

- 2026-10-23T21:57:28+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-113743
- 2026-10-24T13:15:55+00:00 epss https://api.first.org/data/v1/epss?cve=CVE-2026-113743

## From the sources

A weakness has been identified in Tenstorrent tt-metal up to 0.80.0. The affected element is the function load_hf_state_dict_filtered of the file models/tt_transformers/tt/load_checkpoints.py. This manipulation of the argument weight_map causes path traversal. The attack may be initiated remotely. The exploit has been made available to the public and could be used for attacks. Upgrading to version 0.81.0-dev20261016 is sufficient to fix this issue. Patch name: 4851ccf347f6903c3d819eed60705600386e52c3. It is suggested to upgrade the affected component.

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_