We have a page with links of Confluence Documentation in other languages, but our official documentation is available only in English and Japanese: https://confluence.atlassian.com/doc/confluence-documentation-in-other-languages-227416055.html
You might find third party articles in French, though. I hope it helps.
Unfortunately no. We have only english version.
However, you can use Google translation and paste the link you want, then you should get something like this:
Two vulnerabilities have been published for Confluence Server and Data Center recently: March 20, 2019 CVE-2019-3395 / CVE-2019-3396 April 17, 2019 CVE-2019-3398 The goal of this article is...
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