MediumVulnerability
CVE-2025-3933: Hugging Face Transformers ReDoS in DonutProcessor token2json method
- Source
- NVD(opens in a new tab)
- Identifier
- CVE-2025-3933
- Published
- Record updated
- Affected
- transformers <= 4.51.3
- Fixed in
- 4.52.1
- released May 20, 2025, 52 days before disclosure
- Known exploitation
- Not listed in the CISA Known Exploited Vulnerabilities catalog at the last check.
- EPSS
- 0.5%
Summary
CVE-2025-3933 is a Regular Expression Denial of Service (ReDoS) flaw in the Hugging Face Transformers library, within the `token2json()` method of the `DonutProcessor` class. It affects versions 4.50.3 and earlier. The regex `<s_(.*?)>` can be driven into catastrophic backtracking by crafted input strings, causing excessive CPU consumption, service disruption and resource exhaustion in document processing with the Donut model.
Mitigation
Fixed in 4.52.1.
Affected packages in the Exposure Registry
Matched by package name and ecosystem. Each entry shows whether the package delegates to a language model and how many tracked packages depend on it.
- transformersPyPILLM dependency since 2016-08-17 · 141 tracked dependents
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