A vulnerability, which was classified as problematic , has been found in chimurai http-proxy-middleware up to 2.0.9/3.0.5/4.0.x . Affected by this vulnerability is an unknown functionality of the component Host Handler . The manipulation leads to improper input validation. This vulnerability is traded as CVE-2026-55602 . It is possible to initiate the attack remotely. There is no exploit available. It is advisable to upgrade the affected component.