What is CVE-2026-57845?

CVE-2026-57845 is a high-severity vulnerability in Huggingface Datasets, classified under Deserialization of Untrusted Data. CVSS score: 8.8/10. Published 2026-10-23.

How severe is CVE-2026-57845?

High severity. CVSS v3 base score is 8.8 out of 10.

Deserialization in Huggingface Datasets

CVE-2026-57845

Hugging Face Datasets through 5.1.0 contains an insecure deserialization vulnerability that allows attackers to execute arbitrary Python code by crafting a malicious pickle file loaded through the deprecated pandas packaged builder. Attackers can supply a pickle-backed dataset that is processed by Pandas._generate_tables via pandas.read_pickle() without validation, so when a victim calls datasets.load_dataset("pandas", data_files=...), the embedded __reduce__ payload executes code with the victim process's privileges.

Vulnerability class: Insecure Deserialization

Published 2026-10-23 · last modified 2026-10-23.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Huggingface Datasets

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

References

github.com/SaiTeja-Erukude/CVE-2026-57845-hf-datasets-rce (technical-description, exploit)
github.com/huggingface/datasets/pull/8879 (patch)
www.vulncheck.com/advisories/hugging-face-datasets-pickle-deserialization-rce-v… (third-party-advisory)

Frequently asked questions

What is CVE-2026-57845?: CVE-2026-57845 is a high-severity vulnerability in Huggingface Datasets, classified under Deserialization of Untrusted Data. CVSS score: 8.8/10. Published 2026-10-23.
How severe is CVE-2026-57845?: High severity. CVSS v3 base score is 8.8 out of 10.