CVE-2026-66007Public exploitNetwork attack vector

Local file disclosure via unchecked metadata paths

Published Jul 24, 2026 · Updated Jul 24, 2026

Path traversal in Hugging Face Datasets 5.0.0 and earlier allows remote attackers to read local files through a crafted dataset. Folder-based builders normalize file_name metadata and join it to the metadata directory without verifying that the resolved path remains inside that directory. Exploitation requires a user to load the dataset; saving or publishing it then embeds the selected local file in the output.

CVSS severity6.9
Medium
EPSS probability0.56%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in Hugging Face Datasets 5.0.0 and earlier allows remote attackers to read local files through a crafted dataset. Folder-based builders normalize file_name metadata and join it to the metadata directory without verifying that the resolved path remains inside that directory. Exploitation requires a user to load the dataset; saving or publishing it then embeds the selected local file in the output.

The record

CVE
CVE-2026-66007
Published
Jul 24, 2026
Updated
Jul 24, 2026
Vendor
Hugging Face
Product
Datasets
Classifications
CWE-22, T1005
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 24, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 24, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=5.0.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Hugging Face · Datasetsversion=0 <=5.0.0

Published CVSS scores

6.9VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
6.5VulnCheckCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1005Data from Local System

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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