CVE-2024-12720

HIGH EPSS 47.9%
Published Mar 20, 20251y ago · Modified Jun 17, 20261w ago
7.5 CVSS 3.1
High
Find Similar
Published Mar 20, 2025 1y ago
Last Modified Jun 17, 2026 1w ago

Description

A Regular Expression Denial of Service (ReDoS) vulnerability was identified in the huggingface/transformers library, specifically in the file tokenization_nougat_fast.py. The vulnerability occurs in the post_process_single() function, where a regular expression processes specially crafted input. The issue stems from the regex exhibiting exponential time complexity under certain conditions, leading to excessive backtracking. This can result in significantly high CPU usage and potential application downtime, effectively creating a Denial of Service (DoS) scenario. The affected version is v4.46.3 (latest).

CVSS Details

Base Score
7.5
Exploitability
3.9
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
47.9% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-1333

Affected Products 1

VendorProductVersionRange
huggingfacetransformers* <4.48.0

References 2

  • github.com https://github.com/huggingface/transformers/commit/deac971c469bcbb182c2e52da0b82fb3bf54cccf
    Patch
  • huntr.com https://huntr.com/bounties/4bed1214-7835-4252-a853-22bbad891f98
    Vendor Advisory

Remediation

  • github.com https://github.com/huggingface/transformers/commit/deac971c469bcbb182c2e52da0b82fb3bf54cccf
    Patch