CVE-2021-41125

Summary

CVECVE-2021-41125
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-10-06 18:15:00 UTC
Updated2022-04-22 16:00:00 UTC
DescriptionScrapy 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`.

Risk And Classification

Problem Types: CWE-522

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Debian Debian Linux 9.0 All All All
Application Scrapy Scrapy All All All All

References

ReferenceSourceLinkTags
w3lib Package — w3lib 1.22.0 documentation MISC w3lib.readthedocs.io
HTTP authentication credentials potentially leaked to target websites · Advisory · scrapy/scrapy · GitHub CONFIRM github.com
[SECURITY] [DLA 2950-1] python-scrapy security update MLIST lists.debian.org
Downloader Middleware — Scrapy 2.5.1 documentation MISC doc.scrapy.org
Add http_auth_domain to HttpAuthMiddleware. · scrapy/scrapy@b01d69a · GitHub MISC github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 179129 Debian Security Update for python-scrapy (DLA 2950-1)
  • 180859 Debian Security Update for python-scrapy (CVE-2021-41125)
  • 980491 Python (pip) Security Update for Scrapy (GHSA-jwqp-28gf-p498)

© CVE.report 2026

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

Free CVE JSON API cve.report/api

CVE.report and Source URL Uptime Status status.cve.report