GitHub Advisoryadvisory · PyPI

GHSA-phhr-52qp-3mj4 Transformers's Improper Input Validation vulnerability can be exploited through username injection

LOW Published 2025-07-07 Modified 2025-07-08 Official page ↗
Aliases
CVE-2025-3777
Ecosystem
PyPI
Packages
transformers
Severity
Low
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N
Weaknesses
CWE-20
Reviewed
2025-07-08

Affected packages

• PyPI transformers: < 4.52.1 → fixed in 4.52.1

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.

Related

Alias · CVE (1)

  • CVE-2025-3777 Hugging Face Transformers versions up to 4.49.0 are affected by an improper input validation vulnerability in the `image_utils.py` file. vulnerability

Weakness · CWE (1)

  • CWE-20 Improper Input Validation weakness

References