CVE-2025-3777

Summary

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.

Affected Software

Weaknesses

• CWE-20: CWE-20 Improper Input Validation

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: poc
  • Automatable: no
  • Technical Impact: partial

References

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

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