Vulnerability in Huggingface Huggingface/transformers
CVE-2025-3263
A Regular Expression Denial of Service (ReDoS) vulnerability was discovered in the Hugging Face Transformers library, specifically in the `get_configuration_file()` function within the `transformers.configuration_utils` module. The affecte…
Vulnerability class: ReDoS (Regular Expression Denial of Service)
EPSS: 0.004 (34.5th 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)
Public proof-of-concept exploits
References
- security@huntr.dev (Exploit, Third Party Advisory)
- security@huntr.dev (Patch)
Frequently asked questions
- What is CVE-2025-3263?
- CVE-2025-3263 is a medium-severity vulnerability in Huggingface Huggingface/transformers, classified under Inefficient Regular Expression Complexity. CVSS score: 5.3/10. Published 2025-07-07.
- How severe is CVE-2025-3263?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2025-3263 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.