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CVE-2021-41125

23
FAUCET Score

CVE-2021-41125 affects Scrapy, a Python web crawling framework, specifically when using HttpAuthMiddleware for HTTP authentication. The vulnerability causes credentials to be inadvertently exposed to all request targets, including robots.txt requests and redirects, rather than only the intended domain. This medium-severity vulnerability (CVSS 6.5) has a network attack vector and low complexity, potentially leading to high confidentiality impact through unauthorized credential disclosure. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.8.1CPE matchmatch criteria
cpe:2.3:a:scrapy:scrapy:*:*:*:*:*:*:*:*
>= 2.0.0, < 2.5.1CPE matchmatch criteria
cpe:2.3:a:scrapy:scrapy:*:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.7MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.1
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.20%
Probability of exploitation in next 30 days
EPSS Percentile
64.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0120 is in the 79th percentile among its peer group of 21,958 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

github_advisorypatch availablevia nvd_reference
View patch
pippatch availablevia ghsa
Product: ScrapyFixed in: 1.8.1
pippatch availablevia ghsa
Product: ScrapyFixed in: 2.5.1

Vendor Advisories (1)

pipGHSA-jwqp-28gf-p498medium

Scrapy HTTP authentication credentials potentially leaked to target websites

Oct 6, 2021

References

doc.scrapy.org / en/latest/topics/downloader-middleware.html
Vendor Advisory
github.com / scrapy/scrapy/commit/b01d69a1bf48060daec8f751368622352d8b85a6
PatchThird Party Advisory
github.com / scrapy/scrapy/security/advisories/GHSA-jwqp-28gf-p498
Third Party Advisory
lists.debian.org / debian-lts-announce/2022/03/msg00021.html
Mailing ListThird Party Advisory
w3lib.readthedocs.io / en/latest/w3lib.html
Third Party Advisory