Ouch that would be really bad as it could result in confidential data being exposed eg product launch information before the embargo date.

However I just tested this and was not able to replicate the issue.

Ok, thanks for your reply but I've also tested and I see an upcoming article in my RSS feed:

• https://www.web-eau.net/blog?format=feed&type=rss: <title>10 exemples de Header pour vous inspirer</title>

This article will be publish in 2 days (05 August) and shouldn't be available here.

Here is a screenshot from my RSS Feed agregator where this upcoming article is also available:

Edit: the article was in my RSS Feed because I was login as admin on frontend. A public user don't see it.

However, this article shouldn't be available in any RSS Feed agregator (see screenshot posted earlier).

The feed view uses (nearly) the same database queries like the related html view (category blog or list...). Feed uses the same model. Category blog or list display also unpublished articles when you are logged in as Admin or SuperUser in the frontend if you don't suppress that via template overrides.

I would say: Not an issue, this issue.

I would say: Not an issue, this issue.

agreed

You may be agree but this not explain why this upcoming article is displayed by the RSS aggregator.
It shouldn't be and must be fixed.

You said

Edit: the article was in my RSS Feed because I was login as admin on frontend. A public user don't see it.

Therefore it's not a bug but the expected behavior if you see these articles in the same browser that your login runs on.

but this not explain why this upcoming article is displayed by the RSS aggregator.

See #30264 (comment) , please

but this not explain why this upcoming article is displayed by the RSS aggregator.

See #30264 (comment) , please

Because you can create an article today and finish to write it in few days, what happen if someone click on the RSS Feed generated when the article is created but no published? A 404.
The outgoing RSS Feed must be generated by Joomla only when the article is published, not created
I don't think it's so complicated to do.

You said

Edit: the article was in my RSS Feed because I was login as admin on frontend. A public user don't see it.

Therefore it's not a bug but the expected behavior if you see these articles in the same browser that your login runs on.

Thank you, I've understood this earlier.
The point is not here, please read my previous comment :)

Article created as example with these parameters:

Article displayed in the RSS Feed aggregator:

I'm not sure but I'ts not a normal behaviour...
Thankds in advance to consider this issue.

What is this "RSS Feed aggregator"?

I can not replicate the problem you are describing. The rss feed you are seeing when logged in as an admin can never be seen by anyone else. The rss feed reader is looking at your site as a guest.

This should be closed as not reproducible

@web-eau-net since it's not replicate able I'm closing this, if you still see this as a bug please reopen and add the "RSS Feed Aggreator" you are using. Thanks