CVE-2025-51480: onnx Path Traversal — Exploit & Fix

Description

Path Traversal vulnerability in onnx.external_data_helper.save_external_data in ONNX 1.17.0 allows attackers to overwrite arbitrary files by supplying crafted external_data.location paths containing traversal sequences, bypassing intended directory restrictions.

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CVSS v3.1 Score

8.8

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-22 Path Traversal

Affected Products

Vendor	Product	Versions
linuxfoundation	onnx	All

References

Advisories & Patches

https://github.com/onnx/onnx/pull/6959 https://github.com/onnx/onnx/pull/7040

Exploits

https://github.com/onnx/onnx/pull/6959 https://github.com/onnx/onnx/pull/7040 https://www.gecko.security/blog/cve-2025-51480

Other References

https://github.com/advisories/GHSA-6rq9-53c3-f7vj https://github.com/onnx/onnx

Frequently Asked Questions

What is CVE-2025-51480? +

Path Traversal vulnerability in onnx.external_data_helper.save_external_data in ONNX 1.17.0 allows attackers to overwrite arbitrary files by supplying crafted external_data.location paths containing traversal sequences, bypassing intended directory restrictions. It has a CVSS v3.1 base score of 8.8 (HIGH).

How severe is CVE-2025-51480? +

CVE-2025-51480 has a CVSS v3.1 score of 8.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2025-51480? +

CVE-2025-51480 affects products from linuxfoundation, specifically: onnx. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-51480? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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