CVE-2026-66007: Datasets through 5.0.0, fixed in commit f989ef9, contains a path traversal vulnerability in folder-based datas

Routine

MEDIUM 6.5UPGRADE

CVE-2026-66007 is a medium-severity flaw (CVSS 6.5) affecting datasets. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.5% (top 55%)
CISA exploited list	No
Weakness	CWE-22
Published	2026-07-24
Last modified	2026-10-24

Publisher (CNA): VulnCheck · Vendor: huggingface

Last updated 2026-10-24 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-07-24 15:19 UTCPublished CVE record published
2026-10-24 13:10 UTCUpdated Record last modified

huggingface datasets UPGRADE

Affected: <= 5.0.0

Fixed in: newer than 5.0.0

Safe to downgrade to: no unaffected older release

1. Check installed version

pip show datasets

2. UPGRADE to newer than 5.0.0

pip install --upgrade "datasets>5.0.0"

Exact fixes by distribution

Python (pip) · datasets · FIXED · 5.0.1 · vulnerable: < 5.0.1 · source

pip install --upgrade "datasets>=5.0.1" pip show datasets

Fedora ELN · ntpd-rs · FIXED · 1.7.2-3.eln159 · FEDORA-2026-57e4a99310 · source

sudo dnf upgrade --advisory=FEDORA-2026-57e4a99310

Fedora 46 · moby-engine · FIXED · 29.9.2-2.fc46 · FEDORA-2026-4856be87b3 · source

sudo dnf upgrade --advisory=FEDORA-2026-4856be87b3

RHEL AI (RHEL AI) 3 · R · NOT AFFECTED

RHEL AI (RHEL AI) 3 · rhelai3/bootc-aws-cuda-rhel9 · NO FIX YET

RHEL AI (RHEL AI) 3 · rhelai3/bootc-azure-cuda-rhel9 · NO FIX YET

RHEL AI (RHEL AI) 3 · rhelai3/bootc-azure-rocm-rhel9 · NO FIX YET

RHEL AI (RHEL AI) 3 · rhelai3/bootc-cuda-rhel9 · NO FIX YET

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Write-up: github.com/huggingface/datasets/issues/8324

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-66007?

datasets: upgrade to newer than 5.0.0. Exact commands for each OS are on this page.

Is CVE-2026-66007 being exploited?

CVE-2026-66007 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-66007 affect?

CVE-2026-66007 affects datasets. Severity is medium (CVSS 6.5). 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 c

How urgent is CVE-2026-66007?

Priority 39/100. Public exploit reference

References

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