What is CVE-2025-5197?

CVE-2025-5197 is a medium-severity vulnerability in Huggingface Huggingface/transformers, classified under Inefficient Regular Expression Complexity. CVSS score: 5.3/10. Published 2025-08-06.

How severe is CVE-2025-5197?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Vulnerability in Huggingface Huggingface/transformers

CVE-2025-5197

A Regular Expression Denial of Service (ReDoS) vulnerability exists in the Hugging Face Transformers library, specifically in the `convert_tf_weight_name_to_pt_weight_name()` function. This function, responsible for converting TensorFlow w…

Vulnerability class: ReDoS (Regular Expression Denial of Service)

EPSS: 0.004 (31.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.

Affected products

Huggingface Huggingface/transformers — versions unspecified
Huggingface Transformers

Weakness classification (CWE)

CWE-1333 — Inefficient Regular Expression Complexity

References

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

Frequently asked questions

What is CVE-2025-5197?: CVE-2025-5197 is a medium-severity vulnerability in Huggingface Huggingface/transformers, classified under Inefficient Regular Expression Complexity. CVSS score: 5.3/10. Published 2025-08-06.
How severe is CVE-2025-5197?: Medium severity. CVSS v3 base score is 5.3 out of 10.