CVE-2025-3777 Information

Description

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.

Reference

https://github.com/huggingface/transformers/commit/4dda5f71b35fb70cf602187eef84bb17a50b9082 https://huntr.com/bounties/ccba0730-9248-4853-b7ff-5c20e6364f09