Severity by source
AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N
Lifecycle Timeline
5Blast Radius
ecosystem impact- 13 pypi packages depend on transformers (10 direct, 3 indirect)
Ecosystem-wide dependent count for version 4.52.1.
DescriptionCVE.org
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.
Analysis
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.
Technical ContextAI
This vulnerability is classified as Improper Input Validation (CWE-20).
RemediationAI
A vendor patch is available. Apply it as soon as possible and verify the fix.
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External POC / Exploit Code
Leaving vuln.today
EUVD-2025-20211
GHSA-phhr-52qp-3mj4