CVE-2026-66007

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.

CVSS 4.0

6.9CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

CVSS 3.1

6.5CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

EPSS

0.5% chance of exploitation in the next 30 days; higher than 45% of CVEs (scores of 2026-10-25)

CWE

CWE-22

Published

2026-07-24

Modified

2026-10-24

Record from

the NVD, synced 2026-10-24

Affected

• huggingface:datasets

Packages (OSV)

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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