A vulnerability was found in Rack up to 2.2.22/3.1.20/3.2.5 and classified as problematic . This impacts the function Rack::Multipart of the component Content-Type Header Handler . Executing a manipulation can lead to interpretation conflict. This vulnerability is handled as CVE-2026-26961 . The attack can be executed remotely. There is not any exploit available. It is suggested to upgrade the affected component.