5.3
Medium
CVE-2025-3264 A Regular Expression Denial of Service (ReDoS) vulnerability was discovered in the Hugging Face Transformers library,…
Description
A Regular Expression Denial of Service (ReDoS) vulnerability was discovered in the Hugging Face Transformers library, specifically in the `get_imports()` function within `dynamic_module_utils.py`. This vulnerability affects versions 4.49.0 and is fixed in version 4.51.0. The issue arises from a regular expression pattern `\s*try\s*:.*?except.*?:` used to filter out try/except blocks from Python code, which can be exploited to cause excessive CPU consumption through crafted input strings due to catastrophic backtracking. This vulnerability can lead to remote code loading disruption, resource exhaustion in model serving, supply chain attack vectors, and development pipeline disruption.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| huggingface/transformers 4.51 | earliest → < 4.51.0 | 4.51.0 |
Other CVEs of huggingface/transformers
The 20 CVEs of huggingface/transformers →
CVE-2026-9856
A vulnerability in huggingface/transformers…
7.1
High
CVE-2026-5241
A vulnerability in the LightGlue model loading path of huggingface/transformers version 5.2.0 allows an…
8.0
High
CVE-2026-4372
A critical remote code execution vulnerability exists in all versions of the HuggingFace transformers library prior to…
7.8
High
CVE-2026-1839
A vulnerability in the HuggingFace Transformers library, specifically in the `Trainer` class, allows for arbitrary…
6.5
Medium