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transformers - 💡(How to fix) Fix Reporting a RCE vulnerability [1 comments, 2 participants]

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huggingface/transformers#45106•Fetched 2026-04-08 01:48:32
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Fix Action

Fix / Workaround

The report has not yet received a response after 10 day, so we wanted to bring it to your attention in case it has not been reviewed yet. We would greatly appreciate it if the team could take a look and let us know if any additional information, clarification, or proof-of-concept details are needed. We are happy to assist with validation, patch discussion, or coordinated disclosure as needed. Thank you for your time and for maintaining such an important project.

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Hello! We are security researchers from the University of Delaware, and we are writing to follow up on a vulnerability report we submitted via Huntr. We found a critical remote code execution issue in the transformers library. Given the widespread use of transformers and its role as a core dependency in many ML systems, we believe this issue could have significant security impact, e.g., affecting downstream libraries and production pipelines.

The report has not yet received a response after 10 day, so we wanted to bring it to your attention in case it has not been reviewed yet. We would greatly appreciate it if the team could take a look and let us know if any additional information, clarification, or proof-of-concept details are needed. We are happy to assist with validation, patch discussion, or coordinated disclosure as needed. Thank you for your time and for maintaining such an important project.

Who can help?

@Cyrilvallez

extent analysis

Fix Plan

To address the remote code execution issue in the transformers library, we need to patch the vulnerability.

  • Update the transformers library to the latest version.
  • If the issue is in a specific function, modify it to validate and sanitize user input.

Example code snippet to validate user input:

import re

def validate_input(user_input):
    # Define a regex pattern to match allowed input
    pattern = re.compile(r"^[a-zA-Z0-9]+$")
    if pattern.match(user_input):
        return True
    return False

# Usage
user_input = "example_input"
if validate_input(user_input):
    # Process the input
    pass
else:
    # Handle invalid input
    pass

Verification

To verify the fix, test the library with a proof-of-concept exploit and ensure it no longer executes arbitrary code.

Extra Tips

  • Regularly update dependencies to prevent known vulnerabilities.
  • Use tools like OWASP ZAP or Bandit to identify potential security issues in your codebase.
  • Implement a secure coding practice, such as input validation and sanitization, to prevent similar vulnerabilities.

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#container setup#orchestration issue#cache issue#memory leak#API versioning

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