What is CVE-2026-4372?

CVE-2026-4372 is a high-severity vulnerability in Huggingface Huggingface/transformers, classified under CWE-1066. CVSS score: 7.8/10. Published 2026-05-24.

How severe is CVE-2026-4372?

High severity. CVSS v3 base score is 7.8 out of 10.

Deserialization in Huggingface Huggingface/transformers

CVE-2026-4372

A critical remote code execution vulnerability exists in all versions of the HuggingFace transformers library prior to version 5.3.0. The vulnerability allows an attacker to craft a malicious `config.json` file containing the `_attn_implem…

EPSS: 0.000 (9.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Huggingface Huggingface/transformers — versions unspecified
Huggingface Transformers

Weakness classification (CWE)

References

security@huntr.dev (Exploit, Third Party Advisory)
security@huntr.dev (Patch)

Frequently asked questions

What is CVE-2026-4372?: CVE-2026-4372 is a high-severity vulnerability in Huggingface Huggingface/transformers, classified under CWE-1066. CVSS score: 7.8/10. Published 2026-05-24.
How severe is CVE-2026-4372?: High severity. CVSS v3 base score is 7.8 out of 10.