CVE-2026-66007
Medium
Description
Datasets through 5.0.0, fixed in commit f989ef9, contains a path traversal vulnerability in folder-based dataset builders where the file_name metadata field is not properly validated before being joined to the dataset directory. Attackers can supply crafted file_name values with directory traversal sequences to read arbitrary local files, which are then embedded into output when save_to_disk or push_to_hub is called.
SeverityMedium
CVSS6.5
Exploit probability—
ProductHuggingface Datasets
PublishedJul 24, 2026
First seenJul 24, 2026
Weakness typeCWE-22Path traversal
How to fix
Update
- datasets5.0.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| huggingface datasets | v ≤ 5.0.0 | — |
| datasetsPyPI | v < 5.0.1 | 5.0.1 |
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