GHSA-q2wp-rjmx-x6x9
Transformers's ReDoS vulnerability in get_configuration_file can lead to catastrophic backtracking
At a glance
- Published
- Updated
- CVE
- CVE-2025-3263
- Aliases
- PYSEC-2026-1987
- CVSS_V3
- CVSS:3.0/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 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.
Affected packages
| Package | Versions |
|---|---|
| PyPI · transformers | introduced 0, fixed 4.51.0 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2025-3263 ADVISORY
- https://github.com/huggingface/transformers/commit/0720e206c6ba28887e4d60ef60a6a089f6c1cc76 WEB
- https://github.com/huggingface/transformers/commit/126abe3461762e5fc180e7e614391d1b4ab051ca WEB
- https://github.com/huggingface/transformers PACKAGE
- https://huntr.com/bounties/c7a69150-54f8-4e81-8094-791e7a2a0f29 WEB
Sources
| Source | Licence |
|---|---|
| OSV.dev | CC-BY 4.0 — GitHub Advisory Database |