CVE-2018-20060

CVSS 3.0 Score 9.8 of 10 (critical)

Details

Published Dec 11, 2018
Updated: Dec 27, 2024

Summary

CVE-2018-20060 is a vulnerability affecting urllib3 before version 1.23. This issue allows for the exposure of credentials in the Authorization header when following a cross-origin redirect. The vulnerability arises because urllib3 fails to remove the Authorization header during such redirections, potentially transmitting sensitive information to unintended hosts or in cleartext. This flaw could result in unauthorized access or data breaches. To mitigate this risk, affected users are advised to upgrade to the latest version of urllib3.

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Affected Products

  • python-urllib3
  • Fedora Operating System

Affected Vendors

  • Fedora Project
  • Python Software Foundation