---
id: "CVE-2026-118613"
kind: "vulnerability"
aliases: ["CVE-2026-118613"]
title: "Ultralytics: untrusted model file deserialization lets attackers run code"
severity: "high"
cvss: 7.8
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["computer-vision", "package", "python", "ultralytics"]
not_affected_if: ["trusted-files-only"]
published_at: "2026-10-28T17:18:28+00:00"
first_seen_at: "2026-10-28T17:34:10+00:00"
updated_at: "2026-10-28T17:34:26+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-118613", "first_seen_at": "2026-10-28T17:34:10+00:00"}]
---

# Ultralytics: untrusted model file deserialization lets attackers run code

Ultralytics' torch_load function deserializes user-supplied data without validation, so a crafted file can execute code. An attacker runs code as the current user once a victim opens a malicious file or visits a malicious page.

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

## How to check

- Check the installed version with `pip show ultralytics` and compare it to the fixed release in the advisory, which the sources do not name
- Search code for calls to `torch_load` or loading of untrusted model files: unknown

## Fix

- Upgrade the `ultralytics` package to a version newer than the affected one: unknown (the sources do not give the fixed version)
- Only load model weights from trusted sources until upgraded

## Timeline

- 2026-10-28T17:34:10+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-118613

## From the sources

Ultralytics torch_load Deserialization of Untrusted Data Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Ultralytics. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within the torch_load function. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to execute code in the context of the current user. Was ZDI-CAN-29652.

---

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