Advisories for Golang/Github.com/Concourse/Concourse/Skymarshal/Skyserver package

Concourse (7.x.y prior to 7.8.3 and 6.x.y prior to 6.7.9) contains an authorization bypass issue. A Concourse user can send a request with body including :team_name=team2 to bypass team scope check to gain access to certain resources belong to any other team.

A remote unauthenticated attacker could convince a user to click on a link using the oAuth redirect link with an untrusted website and gain access to that user's access token in Concourse.