CVE-2025-3777
Low
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.
SeverityLow
CVSS3.5
Exploit probability—
ProductHuggingface Transformers
PublishedJul 7, 2025
First seenJul 7, 2025
Weakness typeCWE-20Improper input validation
How to fix
Update
- huggingface transformers4.52.1 or later
- transformers4.52.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| huggingface transformers | v < 4.52.1 | 4.52.1 |
| transformersPyPI | v < 4.52.1 | 4.52.1 |
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