You're looking at StableBuild's Deleted PyPI mirror - where we index all deleted packages from the Python package registry.

cve-2021-20323
1.0.0

This version was deleted from PyPI around 2024-01-09. Installing fails with:
$ pip3 install cve-2021-20323==1.0.0 ERROR: Could not find a version that satisfies the requirement cve-2021-20323==1.0.0
View other deleted versions of cve-2021-20323

Install through StableBuild

You can install this package from StableBuild's PyPI snapshots from before the version was deleted:
pip3 install \ -i https://YOUR_API_KEY.pypimirror.stablebuild.com/2024-01-08/ \ cve-2021-20323==1.0.0
Sign up for StableBuild to get an API key (it's free and takes <60 seconds!)

Or, download files manually

And install manually via pip:
CVE-2021-20323-1.0.0.tar.gz (1.1KB)