Vulnerability Details 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 affected version is 4.49.0, and the issue is resolved in version 4.51.0. The vulnerability arises from the use of a regular expression pattern `config\.(.*)\.json` that can be exploited to cause excessive CPU consumption through crafted input strings, leading to catastrophic backtracking. This can result in model serving disruption, resource exhaustion, and increased latency in applications using the library.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 40.4%
CVSS Severity
CVSS v3 Score 5.3
References
Products affected by CVE-2025-3263
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cpe:2.3:a:huggingface:transformers:4.49.0
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cpe:2.3:a:huggingface:transformers:4.50.0
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cpe:2.3:a:huggingface:transformers:4.50.1
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cpe:2.3:a:huggingface:transformers:4.50.2
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cpe:2.3:a:huggingface:transformers:4.50.3