Red Hat Quay contains an Insecure Direct Object Reference (IDOR) vulnerability in the OCI blob upload protocol. Any authenticated user with push access to any repository can perform unauthorized read, write, and delete operations against in-progress blob uploads belonging to other tenants, without holding any permissions on those tenants’ repositories. Requirements to exploit: Attacker needs to be logged into the web app / initiate curl authenticated requests. Components affected: Mirror Registry for OpenShift – BlobUpload functionality / affected database column sha_state Quay deployed on OpenShift 4.20 – BlobUpload functionality / affected database column sha_state Version affected: latest release