CVE-2025-5197
Description
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 weight names to PyTorch format, uses a regex pattern /[^/]*___([^/]*)/ that can be exploited to cause excessive CPU consumption through crafted input strings due to catastrophic backtracking. The vulnerability affects versions up to 4.51.3 and is fixed in version 4.53.0. This issue can lead to service disruption, resource exhaustion, and potential API service vulnerabilities, impacting model conversion processes between TensorFlow and PyTorch formats.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
transformersPyPI | < 4.53.0 | 4.53.0 |
Affected products
6- osv-coords5 versionspkg:apk/chainguard/nemopkg:apk/chainguard/py3.11-text-generation-inferencepkg:apk/chainguard/text-generation-inferencepkg:apk/chainguard/text-generation-inference-compatpkg:pypi/transformers
< 2.4.0-r5+ 4 more
- (no CPE)range: < 2.4.0-r5
- (no CPE)range: < 3.3.6-r3
- (no CPE)range: < 3.3.7-r9
- (no CPE)range: < 3.3.6-r3
- (no CPE)range: < 4.53.0
- huggingface/huggingface/transformersv5Range: unspecified
Patches
Vulnerability mechanics
References
5- github.com/huggingface/transformers/commit/944b56000be5e9b61af8301aa340838770ad8a0bnvdPatchWEB
- huntr.com/bounties/3f8b3fd0-166b-46e7-b60f-60dd9d2678bfnvdExploitIssue TrackingPatchThird Party AdvisoryWEB
- github.com/advisories/GHSA-9356-575x-2w9mghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2025-5197ghsaADVISORY
- github.com/huggingface/transformers/commit/701caef704e356dc2f9331cc3fd5df0eccb4720aghsaWEB
News mentions
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