GHSA-37mw-44qp-f5jm
Transformers is vulnerable to ReDoS attack through its DonutProcessor class
At a glance
- Published
- Updated
- CVE
- CVE-2025-3933
- Aliases
- PYSEC-2026-1977
- CVSS_V3
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
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.
Affected packages
| Package | Versions |
|---|---|
| PyPI · transformers | introduced 0, fixed 4.52.1 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2025-3933 ADVISORY
- https://github.com/huggingface/transformers/pull/37788 WEB
- https://github.com/huggingface/transformers/commit/ebbe9b12dd75b69f92100d684c47f923ee262a93 WEB
- https://github.com/huggingface/transformers PACKAGE
- https://huntr.com/bounties/25282953-5827-4384-bb6f-5790d275721b WEB
Sources
| Source | Licence |
|---|---|
| OSV.dev | CC-BY 4.0 — GitHub Advisory Database |