What is the CVSS score of CVE-2025-3777?

CVE-2025-3777 has a CVSS 3.0 base score of 3.5 (Low). CVSS vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N. EPSS exploitation probability: 0.0%.

Which versions of Hugging Face are affected by CVE-2025-3777?

CVE-2025-3777 is a low-severity vulnerability involving input validation (CVSS 3.5).. A patch is available.

Is there a public PoC exploit available for CVE-2025-3777?

Yes, a public proof-of-concept exploit is available for CVE-2025-3777. Prioritise patching immediately. EPSS: 0.0%.

How to fix or mitigate CVE-2025-3777?

During next maintenance window: Apply vendor patches when convenient. Verify input validation controls are in place.

Hugging Face CVE-2025-3777

EUVD-2025-20211 LOW

Improper Input Validation (CWE-20)

2025-07-07 security@huntr.dev

GHSA-phhr-52qp-3mj4

Authentication Bypass Hugging Face AI / ML

3.5

CVSS 3.0 · NVD

Severity by source

NVD PRIMARY

3.5 LOW

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Lifecycle Timeline

EUVD ID Assigned

Mar 16, 2026 - 03:37 euvd

EUVD-2025-20211

Analysis Generated

Mar 16, 2026 - 03:37 vuln.today

Patch released

Mar 16, 2026 - 03:37 nvd

Patch available

PoC Detected

Aug 07, 2025 - 00:54 vuln.today

Public exploit code

CVE Published

Jul 07, 2025 - 10:15 nvd

LOW 3.5

Blast Radius

ecosystem impact

† from your stack dependencies † transitive graph · vuln.today resolves 4-path depth

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

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.

CVE-2025-3777 vulnerability details – vuln.today

Back