CVE-2025-51480

Path Traversal vulnerability in onnx.external_data_helper.save_external_data in ONNX 1.17.0...

8.8 HighFix available

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.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: Required

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

0.68%Up 0.7 points since Jul 23, 2025

What each source reports

CVE List Score used 8.8

Record: CVE-2025-51480
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness: CWE-22
Updated: 2026-11-02

EUVDEUVD-2025-22338 8.8

Record: EUVD-2025-22338
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated: 2026-11-02

GitHub AdvisoriesGHSA-wj32-g77g-8289 8.8

Path Traversal vulnerability in onnx.external_data_helper.save_external_data in ONNX 1.17.0...

Record: GHSA-wj32-g77g-8289
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness: CWE-22
Updated: 2026-11-02

NVD 8.8

Record: CVE-2025-51480
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness: CWE-22
Updated: 2026-11-02

OSVCVE-2024-5187 8.8

Arbitrary File Overwrite in download_model_with_test_data in onnx/onnx

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.

Record: CVE-2024-5187
CVSS 3.0: 8.8 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness: CWE-22
Updated: 2026-11-02

OSV 8.8

Record: CVE-2025-51480
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated: 2026-11-02

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OSVGHSA-6rq9-53c3-f7vj 8.8

onnx allows Arbitrary File Overwrite in download_model_with_test_data

A vulnerability in the download_model_with_test_data function of the onnx/onnx framework, versions before 1.16.2, allow 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.

Record: GHSA-6rq9-53c3-f7vj
CVSS 3.0: 8.8 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness: CWE-22
Updated: 2026-11-02

OSVPYSEC-2025-148 8.8

Record: PYSEC-2025-148
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVUBUNTU-CVE-2025-51480 8.8

Record: UBUNTU-CVE-2025-51480
CVSS 3.1: 8.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVAZL-65658 No score

CVE-2025-51480 affecting package pytorch for versions less than 2.2.2-15

Record: AZL-65658
Updated: 2026-11-05

OSVAZL-65661 No score

CVE-2025-51480 affecting package pytorch 2.0.0-14

Record: AZL-65661
Updated: 2026-11-02

Affected products

linuxfoundation onnx

Affected packages

Affected packages
Package	Affected	Fixed
`pytorch` Azure Linux:3	before 2.2.2-15	2.2.2-15
`pytorch` Azure Linux:2	through 2.0.0-14	None known
`onnx` PyPI From an advisory covering 2 CVEs	before 1.16.2, plus listed versions 0.10.20.2.11.0.01.0.1 Show 27 moreShow less 1.1.01.1.11.1.21.10.01.10.11.10.21.11.01.12.01.13.01.13.11.14.01.14.11.15.01.16.01.16.11.2.11.2.21.2.31.3.01.4.01.4.11.5.01.6.01.7.01.8.01.8.11.9.0	1.16.2
`onnx` PyPI From an advisory covering 2 CVEs	through 1.17.0, plus listed versions 0.10.20.2.11.0.01.0.1 Show 28 moreShow less 1.1.01.1.11.1.21.10.01.10.11.10.21.11.01.12.01.13.01.13.11.14.01.14.11.15.01.16.01.16.11.16.21.2.11.2.21.2.31.3.01.4.01.4.11.5.01.6.01.7.01.8.01.8.11.9.0	None known
`onnx` Ubuntu:22.04:LTS	All versions, plus listed versions 1.7.0+dfsg-3build11.7.0+dfsg-3build21.7.0+dfsg-3ubuntu11.7.0+dfsg-3ubuntu2	None known
`onnx` Ubuntu:Pro:24.04:LTS	All versions, plus listed versions 1.13.1-31.13.1-3build11.14.1-21.14.1-2.11.14.1-2.1build11.14.1-2.1build21.14.1-2.1ubuntu0.1~esm1	None known
`onnx` Ubuntu:25.10	All versions, plus listed versions 1.17.0-3build1	None known
`onnx` Ubuntu:26.10	All versions, plus listed versions 1.20.0-11.20.0-6	None known
`onnx` Ubuntu:26.04:LTS	All versions, plus listed versions 1.17.0-3build11.20.0-1	None known

History

History
Recorded	Changed	Sources
Nov 6, 2026	affected
Nov 5, 2026	facts	OSV
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2025-51480 is a high vulnerability (CVSS 8.8) in Linuxfoundation Onnx, published June 6, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.68%, the 52nd percentile. Fixed in pytorch 2.2.2-15.

References

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