CVE-2021-41125 log

Severity Medium
Remote Yes
Type Information disclosure
A security issue has been found in Scrapy before version 2.5.1. 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.
Group Package Affected Fixed Severity Status Ticket
AVG-2447 scrapy 2.5.0-2 2.5.1-1 Medium Fixed

The issue can be mitigated by setting 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.