Regular Expression Denial of Service (ReDoS) in huggingface/transformers
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| huggingface | huggingface/transformers | affected |
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No data.
| Vendor | Product | Versions |
|---|---|---|
| Huggingface | Transformers | — |
| Source | ID | Title |
|---|---|---|
EUVD |
EUVD-2025-7016 | A Regular Expression Denial of Service (ReDoS) vulnerability was identified in the huggingface/transformers library, specifically in the file tokenization_nougat_fast.py. The vulnerability occurs in the post_process_single() function, where a regular expression processes specially crafted input. The issue stems from the regex exhibiting exponential time complexity under certain conditions, leading to excessive backtracking. This can result in significantly high CPU usage and potential application downtime, effectively creating a Denial of Service (DoS) scenario. The affected version is v4.46.3 (latest). |
Github GHSA |
GHSA-6rvg-6v2m-4j46 | Transformers Regular Expression Denial of Service (ReDoS) vulnerability |
No CVSS v4.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.747% probability within 30 days)
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:2.3:a:huggingface:transformers:*:*:*:*:*:*:*:* | |
| Metrics |
cvssV3_1
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| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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| Type | Values Removed | Values Added |
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| Description | A Regular Expression Denial of Service (ReDoS) vulnerability was identified in the huggingface/transformers library, specifically in the file tokenization_nougat_fast.py. The vulnerability occurs in the post_process_single() function, where a regular expression processes specially crafted input. The issue stems from the regex exhibiting exponential time complexity under certain conditions, leading to excessive backtracking. This can result in significantly high CPU usage and potential application downtime, effectively creating a Denial of Service (DoS) scenario. The affected version is v4.46.3 (latest). | |
| Title | Regular Expression Denial of Service (ReDoS) in huggingface/transformers | |
| Weaknesses | CWE-1333 | |
| References |
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| Metrics |
cvssV3_0
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