What’s Vulnerable › Vulnerabilities

CVE-2026-66007: Datasets Path Traversal via Unsanitized file_name Metadata

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2026-07-24 · updated 2026-10-24
• Weakness: CWE-22

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.

Affected products

• huggingface datasets: through 5.0.0

References

• https://github.com/huggingface/datasets/commit/f989ef9b4cc6c0039a7a82458eebca49e2b58b4b
• https://github.com/huggingface/datasets/issues/8324
• https://github.com/huggingface/datasets/pull/8325
• https://www.vulncheck.com/advisories/datasets-path-traversal-via-unsanitized-file-name-metadata

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