# CVE-2024-5187: Arbitrary File Overwrite in download_model_with_test_data in onnx/onnx

> Attackers can overwrite arbitrary files via path traversal in malicious tar archives, potentially leading to remote code execution or system compromise.

- **Severity:** High 8.8 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 6 Jun 2024
- **Updated:** 1 Aug 2024
- **Also known as:** AZL-50635, DEBIAN-CVE-2024-5187, UBUNTU-CVE-2024-5187, USN-8307-1

## What is CVE-2024-5187?

CVE-2024-5187 is a high-severity path traversal vulnerability in onnx/onnx, published on 6 Jun 2024. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

A vulnerability in the `download_model_with_test_data` function of the onnx/onnx framework, version 1.16.0, allows for arbitrary file overwrite due to inadequate prevention of path traversal attacks in malicious tar files. This vulnerability enables attackers to overwrite any file on the system, potentially leading to remote code execution, deletion of system, personal, or application files, thus impacting the integrity and availability of the system. The issue arises from the function's handling of tar file extraction without performing security checks on the paths within the tar file, as demonstrated by the ability to overwrite the `/home/kali/.ssh/authorized_keys` file by specifying an absolute path in the malicious tar file.

Weakness: CWE-22 (Improper Limitation of a Pathname to a Restricted Directory)

## Which versions are affected by CVE-2024-5187?

It affects 1 product.


Products: Linuxfoundation Onnx.

## How do I fix CVE-2024-5187?

Apply the vendor's patch.

## Is CVE-2024-5187 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-5187 exists.

## Other vulnerabilities in onnx/onnx

- [CVE-2025-51480](https://insights.sbomify.com/CVE-2025-51480/): Path traversal in n/a (high 8.8)
- [CVE-2026-27489](https://insights.sbomify.com/CVE-2026-27489/): ONNX: Path Traversal via Symlink (high 8.7)
- [CVE-2026-34445](https://insights.sbomify.com/CVE-2026-34445/): ONNX: Malicious ONNX models can crash servers by exploiting unprotected object settings. (high 8.6)
- [CVE-2026-28500](https://insights.sbomify.com/CVE-2026-28500/): ONNX Untrusted Model Repository Warnings Suppressed by silent=True in onnx.hub.load() — Silent Supply-Chain Attack (high 8.6)
- [CVE-2022-25882](https://insights.sbomify.com/CVE-2022-25882/): Directory Traversal in onnx (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-5187 and fix it if it is affected.

What it is: CVE-2024-5187 is a high-severity path traversal vulnerability in onnx/onnx, published on 6 Jun 2024. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-5187 exists.

Affected product: onnx/onnx. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2024-5187/ (Markdown: https://insights.sbomify.com/CVE-2024-5187/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-5187
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-5187
- OSV: https://osv.dev/vulnerability/CVE-2024-5187

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-5187/
Summaries are generated and may contain mistakes; the official description above is the record.