CVE-2025-6638

Source
https://nvd.nist.gov/vuln/detail/CVE-2025-6638
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-6638.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2025-6638
Aliases
Published
2025-09-12T11:15:31Z
Modified
2025-09-15T15:21:42Z
Summary
[none]
Details

A Regular Expression Denial of Service (ReDoS) vulnerability was discovered in the Hugging Face Transformers library, specifically affecting the MarianTokenizer's remove_language_code() method. This vulnerability is present in version 4.52.4 and has been fixed in version 4.53.0. The issue arises from inefficient regex processing, which can be exploited by crafted input strings containing malformed language code patterns, leading to excessive CPU consumption and potential denial of service.

References

Affected packages

Git / github.com/huggingface/transformers

Affected ranges

Type
GIT
Repo
https://github.com/huggingface/transformers
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed