High Severity
scrapy
Authorization Header Leakage on Cross-Origin Redirects
A vulnerability in Scrapy versions >= 2, <= 2.11.1 and <= 1.8.4 allowed the leakage of Authorization headers during same-domain but cross-origin redirects. This issue, patched in version 2.11.2, contravened the Fetch standard by not removing Authorization headers in cross-domain requests, potentially exposing sensitive information.
Available publicly on May 20 2024 | Available with Premium on May 14 2024
Remediation Steps
- Update Scrapy to version 2.11.2 or later.
- Review and adjust the handling of redirects in your application to ensure compliance with the Fetch standard, particularly regarding the stripping of sensitive headers in cross-origin scenarios.
- Consider implementing additional security measures to detect and prevent downgrade attacks, such as HSTS (HTTP Strict Transport Security).
Patch Details
- Fixed Version: 2.11.2
- Patch Commit: https://github.com/scrapy/scrapy/commit/1d0502f25bbe55a22899af915623fda1aaeb9dd8
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