CVE - CVE-2025-2099

CVE-ID
CVE-2025-2099	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
A vulnerability in the `preprocess_string()` function of the `transformers.testing_utils` module in huggingface/transformers version v4.48.3 allows for a Regular Expression Denial of Service (ReDoS) attack. The regular expression used to process code blocks in docstrings contains nested quantifiers, leading to exponential backtracking when processing input with a large number of newline characters. An attacker can exploit this by providing a specially crafted payload, causing high CPU usage and potential application downtime, effectively resulting in a Denial of Service (DoS) scenario.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://github.com/huggingface/transformers/commit/8cb522b4190bd556ce51be04942720650b1a3e57 URL:https://github.com/huggingface/transformers/commit/8cb522b4190bd556ce51be04942720650b1a3e57 MISC:https://huntr.com/bounties/97b780f3-ffca-424f-ad5d-0e1c57a5bde4 URL:https://huntr.com/bounties/97b780f3-ffca-424f-ad5d-0e1c57a5bde4
Assigning CNA
Protect AI
Date Record Created
20250307	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20250307)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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