CVE-2021-41124: Scrapy-splash is a library which provides Scrapy and JavaScript integration

Q: How do I fix CVE-2021-41124?

scrapy-splash: upgrade to 0.8.0. Exact commands for each OS are on this page.

Q: Is CVE-2021-41124 being exploited?

CVE-2021-41124 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2021-41124 affect?

CVE-2021-41124 affects scrapy-splash. Severity is high (CVSS 7.4). Scrapy-splash is a library which provides Scrapy and JavaScript integration. In affected versions users who use [`HttpAuthMiddleware`](http://doc.scrapy.org/en/latest/topics/downloader-middleware.html#module-scrapy.downloadermiddlewares.htt

This month

HIGH 7.4UPGRADE

CVE-2021-41124 is a high-severity flaw (CVSS 7.4) affecting scrapy-splash. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Scrapy-splash is a library which provides Scrapy and JavaScript integration. In affected versions users who use [`HttpAuthMiddleware`](http://doc.scrapy.org/en/latest/topics/downloader-middleware.html#module-scrapy.downloadermiddlewares.httpauth) (i.e. the `http_user` and `http_pass` spider attributes) for Splash authentication will have any non-Splash request expose your credentials to the request target. This includes `robots.txt` requests sent

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.4 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	1.1% (top 34%)
CISA exploited list	No
Weakness	CWE-200
Published	2021-10-05
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: zyte

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2021-10-05 21:15 UTCPublished CVE record published
2026-06-17 04:07 UTCUpdated Record last modified

zyte scrapy-splash UPGRADE

Affected: < 0.8.0

Fixed in: 0.8.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy scrapy-splash || rpm -q scrapy-splash || scrapy-splash --version

2. UPGRADE to 0.8.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade scrapy-splash

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade scrapy-splash

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2021-41124?

scrapy-splash: upgrade to 0.8.0. Exact commands for each OS are on this page.

Is CVE-2021-41124 being exploited?

CVE-2021-41124 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2021-41124 affect?

CVE-2021-41124 affects scrapy-splash. Severity is high (CVSS 7.4). Scrapy-splash is a library which provides Scrapy and JavaScript integration. In affected versions users who use [`HttpAuthMiddleware`](http://doc.scrapy.org/en/latest/topics/downloader-middleware.html#module-scrapy.downloadermiddlewares.htt

How urgent is CVE-2021-41124?

Priority 42/100. High severity

References

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