drush up fails with Unknown archive format Today, I am getting an error message when I run the Drush download or update command.

drush up -y captcha


fails with 


  Unable to extract /.tmp/drush_tmp_1582749966_5e56d90e14736/captcha-7.x-1.7.tar.gz. Unknown archive format. [error]


When I changed the Drush temp directory I still get the same error message. Also, same error message using php7.2, php7.3, php7.4 

Why does this happen?
I had the same issue.
I'm on PHP 7.4.5
The issue is fixed by upgrading drush from 8.1.15 to 8.3.3:

Change (update to 8.3.3) Drush-Version in

~/.composer/composer.json

and

composer update