GHSA-85JX-FM8M-X8C6 zot’s create-only policy allows overwrite attempts of existing latest tag (update permission not required)

zot’s dist-spec authorization middleware infers the required action for PUT /v2/name/manifests/reference as create by default, and only switches to update when the tag already exists and reference != "latest". as a result, when latest already exists, a user who is allowed to create but not allowe...