CVE-2024-12720

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.

How to fix CVE-2024-12720

To remediate CVE-2024-12720, upgrade the affected package to a fixed version below.

• —upgrade to 4.48.0 or later

Is CVE-2024-12720 being exploited?

Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.

Affected packages (1)

• from 0, < 4.48.0

CVSS scores

References (4)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2024-12720
• PATCHgithub.com/huggingface/transformers
• WEBgithub.com/huggingface/transformers/commit/deac971c469bcbb182c2e52da0b82fb3bf54cccf
• WEBhuntr.com/bounties/4bed1214-7835-4252-a853-22bbad891f98