CVE-2025-3777Low· 3.5▾ SunlitTransformers's Improper Input Validation vulnerability can be exploited through username injection
▾ Sunlit zone — Low / medium · no exploitation signal
impact 19.3 · likelihood 0.1 · exploitation 0
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Exploit-prediction probability, daily snapshots since Jul 31.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via OSV
0.3%
Last analysed / modified upstream
0.3% → 0.4%
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.
transformers < 4.52.1Upgrade to a patched release:
transformers 4.52.1Connected by shared product, vendor, weakness, or advisory.
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