Who owns the I've Got a Secret format anyway? This would be the third version that didn't involve any of Goodson's successor companies.
The ownership thread is definitely confusing, but it sure looks like Tom Werner (formerly of Carsey-Werner) is your guy. A lot of this is guesswork, but Carsey-Warner had a major hand in the launch of Oxygen, which was the home of the Stephanie Miller version. They may have acquired rights to the show then, because Carsey-Warner was pushing a new syndicated version in the early 90s, which may or may not (depending on which article you read) have been intended to pair with Bill Cosby's
You Bet Your Life. Best as I can tell, they never even made a pilot for that. The press kit for the 2006 GSN version doesn't mention Werner at all, but it's possible GSN licensed that version from him without his direct involvement. Because now, the 2023 press release includes "Werner Entertainment" among the producers. (There's still a company named Carsey-Werner, but the two haven't worked together since the early 2000s.)
EDIT: Actually, it specifically says in the press release, "based on the format owned by Werner Entertainment, Inc." So there you go.
I have more than a passing interest in this subject, for reasons I will reveal shortly. (I have nothing to do with this remake.)