CVE-2025-3777 LOW

CVE-2025-3777: Improper Input Validation in huggingface/transformers

Vendor Huggingface
Product huggingface/transformers
Weakness CWE-20 · Input validation
Published July 7, 2025
Last update July 7, 2025

CVSS base score

3.5/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction Required
Confidentiality Low
Integrity None

CVSS vector

CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N

What the vulnerability does

01Description

Hugging Face Transformers versions up to 4.49.0 are affected by an improper input validation vulnerability in the `image_utils.py` file. The vulnerability arises from insecure URL validation using the `startswith()` method, which can be bypassed through URL username injection. This allows attackers to craft URLs that appear to be from YouTube but resolve to malicious domains, potentially leading to phishing attacks, malware distribution, or data exfiltration. The issue is fixed in version 4.52.1.

Key dates

02Disclosure timeline

July 7, 2025 CVE published
July 7, 2025 Record updated