A flaw was found in Quay. When an organization acts as a proxy cache, and a user or robot pulls an image that hasn't been mirrored yet, they are granted "Admin" permissions on the newly created repository.
An information disclosure vulnerability was found in Red Hat Quay in versions before 3.3.1. This flaw allows an attacker who can create a build trigger in a repository, to disclose the names of robot accounts and the existence of private repositories within any namespace.
A vulnerability was discovered in all quay-2 versions before quay-3.0.0, in the Quay web GUI where POST requests include a specific parameter which is used as a CSRF token. The token is not refreshed for every request or when a user logged out and in again. An attacker could use a leaked token to gain access to the system using the user's account.