HighVulnerability

CVE-2025-51480: ONNX path traversal in save_external_data overwrites arbitrary files

Source: NVD(opens in a new tab)
Identifier: CVE-2025-51480
Published: July 22, 2025
Record updated: October 9, 2026

Known exploitation: Not listed in the CISA Known Exploited Vulnerabilities catalog at the last check.
EPSS: 0.7%

Summary

CVE-2025-51480 is a path traversal flaw in onnx.external_data_helper.save_external_data in ONNX 1.17.0. Crafted external_data.location paths containing traversal sequences let attackers overwrite arbitrary files, bypassing the intended directory restrictions. NVD has not yet provided an assessment, and the weakness is classified as CWE-22.

Mitigation

The source does not state a fix yet. Check the original advisory for updates.

Details

Scores and exploitation

CVSS score: 8.8(high)
EPSS: 0.7%Estimated probability that this CVE is exploited in the next 30 days, from the FIRST Exploit Prediction Scoring System. Read on November 4, 2026.

Weaknesses and techniques

Weakness (CWE): CWE-22
Attack pattern (CAPEC): CAPEC-126

Affected

Vendors: HuggingFace

Classification

Attack type: Other
Attack sophistication: Moderate
AI component targeted: Framework
Impact: Integrity
Labels: security

How this record was produced

Summaries, mitigations and labels on this page are generated automatically from the source. The linked source is authoritative. The source gives this advisory a description and no title, so the title above is a headline generated from the source text.

Original source: https://nvd.nist.gov/vuln/detail/CVE-2025-51480

First tracked: February 15, 2026 at 08:44 PM ET, from NVD/CVE Database

Classifier: claude-haiku-5-5, prompt v4

Classifier confidence: 85% (self-assessed)

Summary

Mitigation

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