A vulnerability was found in getkin kin-openapi up to 0.143.x and classified as critical . Affected by this issue is the function ValidationHandler.Load of the file openapi3filter/validation_handler.go of the component ValidationHandler . Executing a manipulation can lead to improper authentication. This vulnerability is tracked as CVE-2026-73501 . The attack can be launched remotely. No exploit exists. It is suggested to upgrade the affected component.