How severe is CVE-2026-66007?

CVE-2026-66007 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2026-66007 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-66007?

CVE-2026-66007 affects Huggingface Datasets. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-66007?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2026-66007 published?

CVE-2026-66007 was published on 2026-07-24 and last updated on 2026-08-17.

CVE-2026-66007

CVE-2026-66007 is a medium-severity vulnerability in Huggingface Datasets with a CVSS 3.x base score of 6.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-22.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v4: 6.9
EPSS exploit prediction: 1% (42nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Huggingface Datasets
Published: 2026-07-24
Last modified: 2026-08-17

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.

Frequently asked questions

What is 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.
How severe is CVE-2026-66007?: CVE-2026-66007 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2026-66007 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-66007?: CVE-2026-66007 affects Huggingface Datasets. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-66007?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2026-66007 published?: CVE-2026-66007 was published on 2026-07-24 and last updated on 2026-08-17.

References

Affected products (1)

cpe:2.3:a:huggingface:datasets:*:*:*:*:*:python:*:*

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