CVE-2025-3933

Description

A Regular Expression Denial of Service (ReDoS) vulnerability was discovered in the Hugging Face Transformers library, specifically within the DonutProcessor class's `token2json()` method. This vulnerability affects versions 4.51.3 and earlier, and is fixed in version 4.52.1. The issue arises from the regex pattern `<s_(.*?)>` which can be exploited to cause excessive CPU consumption through crafted input strings due to catastrophic backtracking. This vulnerability can lead to service disruption, resource exhaustion, and potential API service vulnerabilities, impacting document processing tasks using the Donut model.

How to fix CVE-2025-3933

To remediate CVE-2025-3933, upgrade the affected package to a fixed version below.

• —upgrade to 4.52.1 or later

Is CVE-2025-3933 being exploited?

Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.

Affected packages (1)

• from 0, < 4.52.1

CVSS scores

References (5)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2025-3933
• PATCHgithub.com/huggingface/transformers
• WEBgithub.com/huggingface/transformers/commit/ebbe9b12dd75b69f92100d684c47f923ee262a93
• WEBgithub.com/huggingface/transformers/pull/37788