CVE-2025-3777

Improper Input Validation in huggingface/transformers

LOW
3.5
CVSS Score
Published: July 7, 2025 at 09:55 AM UTC
Updated: June 17, 2026 at 09:20 AM UTC
1 product affected across 1 vendorTransformers

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Severity
LOW3.5
Exploit prediction
EPSS 0.4%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 4.52.1
Affected range stops below 4.52.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

3.5LOW@huntr_ai
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-20NVD-CWE-noinfo

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