Hugging Face Transformers fails to validate shard filenames in checkpoint index files, allowing attackers to read arbitrary files outside the model directory. Attackers can supply malicious index files with parent-directory references or absolute paths that are joined without validation, enabling file disclosure and filesystem reconnaissance.

Attack Vector Local

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction Passive

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Local

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact None

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.0019.

Exploitation poc

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
huggingface transformers unaffected
Version Status Constraints
0 affected ≤ 5.15.0

No data.

No data.

OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.

Vendors Products
Huggingface Subscribe
Transformers Subscribe

Project Subscriptions

Vendors Products
Huggingface Subscribe
Transformers Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/huggingface/transformers cve-icon cve-icon
https://github.com/huggingface/transformers/blob/main/src/transformers/utils/hub.py cve-icon cve-icon
https://github.com/huggingface/transformers/issues/47176 cve-icon cve-icon cve-icon
https://github.com/huggingface/transformers/issues/47177 cve-icon cve-icon
https://www.vulncheck.com/advisories/hugging-face-transformers-path-traversal-via-checkpoint-index cve-icon cve-icon
History

Tue, 18 Aug 2026 13:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Mon, 17 Aug 2026 20:45:00 +0000

Type Values Removed Values Added
Description Hugging Face Transformers fails to validate shard filenames in checkpoint index files, allowing attackers to read arbitrary files outside the model directory. Attackers can supply malicious index files with parent-directory references or absolute paths that are joined without validation, enabling file disclosure and filesystem reconnaissance.
Title Hugging Face Transformers Path Traversal via Checkpoint Index
First Time appeared Huggingface
Huggingface transformers
Weaknesses CWE-22
CPEs cpe:2.3:a:huggingface:transformers:*:*:*:*:*:*:*:*
Vendors & Products Huggingface
Huggingface transformers
References
Metrics cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N'}

cvssV4_0

{'score': 6.8, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N'}

Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-08-18T12:40:32.385Z

Reserved: 2026-08-17T17:28:41.677Z

Link: CVE-2026-75104

cve-icon Vulnrichment

Updated: 2026-08-18T12:40:13.942Z

cve-icon NVD

Status : Received

Published: 2026-08-17T21:16:49.340

Modified: 2026-08-18T13:17:41.683

Link: CVE-2026-75104

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-17T21:30:03Z

Weaknesses