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.
CVE-2021-41125
This medium-severity CVE scores 5.7 under NVD CVSS v3. EPSS exploit probability: 1.2%, top 35% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- Lower severity and no public exploit yet
A fix is available — apply it.
- CVSS v3
- 5.7
- EG Score
- 5.7(medium)
- EG Risk
- 31(Track)EG Risk 31/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity57% × 45%Exploitation1% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS
- 64.8%
- KEV
- Not listed
Published
October 6, 2021
Last Modified
November 21, 2024
References (10)
- security-advisories@githubhttp://doc.scrapy.org/en/latest/topics/downloader-middleware.html#module-scrapy.downloadermiddlewares.httpauth
- security-advisories@githubhttps://github.com/scrapy/scrapy/commit/b01d69a1bf48060daec8f751368622352d8b85a6
- security-advisories@githubhttps://github.com/scrapy/scrapy/security/advisories/GHSA-jwqp-28gf-p498
- security-advisories@githubhttps://lists.debian.org/debian-lts-announce/2022/03/msg00021.html
- security-advisories@githubhttps://w3lib.readthedocs.io/en/latest/w3lib.html#w3lib.http.basic_auth_header
- af854a3a-2127-422b-91ae-364da2661108http://doc.scrapy.org/en/latest/topics/downloader-middleware.html#module-scrapy.downloadermiddlewares.httpauth
- af854a3a-2127-422b-91ae-364da2661108https://github.com/scrapy/scrapy/commit/b01d69a1bf48060daec8f751368622352d8b85a6
- af854a3a-2127-422b-91ae-364da2661108https://github.com/scrapy/scrapy/security/advisories/GHSA-jwqp-28gf-p498
- af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2022/03/msg00021.html
- af854a3a-2127-422b-91ae-364da2661108https://w3lib.readthedocs.io/en/latest/w3lib.html#w3lib.http.basic_auth_header
Patch Availability(1)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | python3-scrapy (1.7.3-1ubuntu0.1~esm1) @ focal | 2026-05-26 | ubuntu |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(1 across 1 ecosystem)
PyPI(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| scrapy | 0.10.4.2364 ... 2.5.0 (81 versions) | 2.5.1 | — |
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
All Vendor Advisories
(1)
Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.
Data Freshness Timeline
(refreshed 13× in last 7d / 51× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 107 total refreshes for this CVE.
- 2026-07-23 02:04 UTCEG score recompute
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Related CVEs(same vendor + same CWE)
Same vendor
10 shownubuntu
Same CWE
10 shownCWE-522 · CWE-200
Frequently asked(5)
What is CVE-2021-41125?
When was CVE-2021-41125 disclosed?
Is CVE-2021-41125 actively exploited?
What is the CVSS score of CVE-2021-41125?
How do I remediate CVE-2021-41125?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2021-41125
Is Your Infrastructure Affected by CVE-2021-41125?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.