CVE-2021-41125

Scrapy is a high-level web crawling and scraping framework for Python. If
you use HttpAuthMiddleware (i.e. the http_user and http_pass spider
attributes) for HTTP authentication, all requests will expose your
credentials to the request target. This includes requests generated by
Scrapy components, such as robots.txt requests sent by Scrapy when the
ROBOTSTXT_OBEY setting is set to True, or as requests reached through
redirects. Upgrade to Scrapy 2.5.1 and use the new http_auth_domain
spider attribute to control which domains are allowed to receive the
configured HTTP authentication credentials. If you are using Scrapy 1.8 or
a lower version, and upgrading to Scrapy 2.5.1 is not an option, you may
upgrade to Scrapy 1.8.1 instead. If you cannot upgrade, set your HTTP
authentication credentials on a per-request basis, using for example the
w3lib.http.basic_auth_header function to convert your credentials into a
value that you can assign to the Authorization header of your request,
instead of defining your credentials globally using HttpAuthMiddleware.