CVE-2025-3264
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.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
transformersPyPI | < 4.51.0 | 4.51.0 |
Affected products
2- huggingface/huggingface/transformersv5Range: unspecified
Patches
Vulnerability mechanics
References
5- github.com/huggingface/transformers/commit/0720e206c6ba28887e4d60ef60a6a089f6c1cc76nvdPatchWEB
- huntr.com/bounties/3c6f7822-9992-476d-8cf0-b0b1623427dfnvdExploitThird Party AdvisoryWEB
- github.com/advisories/GHSA-jjph-296x-mrcrghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2025-3264ghsaADVISORY
- github.com/huggingface/transformers/commit/126abe3461762e5fc180e7e614391d1b4ab051caghsaWEB
News mentions
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