Is CVE-2026-57845 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-57845 being exploited in the wild.

How severe is CVE-2026-57845?

High severity, with a CVSS score of 8.8, published 23 October 2026.

Which products and versions are affected?

Hugging Face Datasets through 5.1.0.

Is there a fix for CVE-2026-57845?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-57845 attacked?

It is attacked over the network, in a software library.

Am I affected by CVE-2026-57845?

Check whether you run Hugging Face Datasets at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-57845: Hugging Face Datasets insecure deserialization in pandas builder

CVE-2026-57845 · Severity: high · CVSS 8.8 · Published 2026-10-23

Hugging Face Datasets is a library for loading and processing machine learning datasets. Versions through 5.1.0 contain a critical flaw in the pandas dataset loader that allows attackers to execute arbitrary Python code when a user loads a malicious dataset file. An attacker can craft a poisoned pickle file that runs code with the victim's privileges, potentially stealing credentials, modifying data, or compromising the entire system.

Technologies: Hugging Face Datasets. Vendors: Hugging Face.

Quick answers

Is CVE-2026-57845 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-57845 being exploited in the wild.
How severe is CVE-2026-57845?: High severity, with a CVSS score of 8.8, published 23 October 2026.
Which products and versions are affected?: Hugging Face Datasets through 5.1.0.
Is there a fix for CVE-2026-57845?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-57845 attacked?: It is attacked over the network, in a software library.
Am I affected by CVE-2026-57845?: Check whether you run Hugging Face Datasets at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The pandas packaged builder in Hugging Face Datasets passes user-supplied pickle files directly to pandas.read_pickle() without validation, triggering deserialization of untrusted data. The vulnerability is in datasets.packaged_modules.pandas.Pandas._generate_tables(), which opens attacker-controlled files and unpickles them, executing arbitrary Python code embedded in the pickle's __reduce__ method before any data validation occurs. Exploitation requires user interaction to call datasets.load_dataset("pandas", data_files=...) with attacker-supplied paths, but no authentication or network privilege is required.

Affected products

Hugging Face Datasets through 5.1.0

Timeline

2026-10-23: disclosed

References

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